tools/examples: hardcode #!/usr/bin/python shebang
diff --git a/examples/hello_world.py b/examples/hello_world.py
index 49c5535..bb52f3e 100755
--- a/examples/hello_world.py
+++ b/examples/hello_world.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# Copyright (c) PLUMgrid, Inc.
# Licensed under the Apache License, Version 2.0 (the "License")
diff --git a/examples/networking/distributed_bridge/main.py b/examples/networking/distributed_bridge/main.py
index 056443e..c72360e 100755
--- a/examples/networking/distributed_bridge/main.py
+++ b/examples/networking/distributed_bridge/main.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# Copyright (c) PLUMgrid, Inc.
# Licensed under the Apache License, Version 2.0 (the "License")
diff --git a/examples/networking/distributed_bridge/tunnel.py b/examples/networking/distributed_bridge/tunnel.py
index ef94292..11b59f0 100755
--- a/examples/networking/distributed_bridge/tunnel.py
+++ b/examples/networking/distributed_bridge/tunnel.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# Copyright (c) PLUMgrid, Inc.
# Licensed under the Apache License, Version 2.0 (the "License")
diff --git a/examples/networking/distributed_bridge/tunnel_mesh.py b/examples/networking/distributed_bridge/tunnel_mesh.py
index f111ac9..54ecfcd 100644
--- a/examples/networking/distributed_bridge/tunnel_mesh.py
+++ b/examples/networking/distributed_bridge/tunnel_mesh.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# Copyright (c) PLUMgrid, Inc.
# Licensed under the Apache License, Version 2.0 (the "License")
diff --git a/examples/networking/dns_matching/dns_matching.py b/examples/networking/dns_matching/dns_matching.py
index c8625cd..943dca5 100755
--- a/examples/networking/dns_matching/dns_matching.py
+++ b/examples/networking/dns_matching/dns_matching.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
from __future__ import print_function
from bcc import BPF
diff --git a/examples/networking/http_filter/http-parse-complete.py b/examples/networking/http_filter/http-parse-complete.py
index 1218cb2..f1e5e0a 100644
--- a/examples/networking/http_filter/http-parse-complete.py
+++ b/examples/networking/http_filter/http-parse-complete.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
#Bertrone Matteo - Polytechnic of Turin
#November 2015
diff --git a/examples/networking/http_filter/http-parse-simple.py b/examples/networking/http_filter/http-parse-simple.py
index 1fad0d8..b702393 100644
--- a/examples/networking/http_filter/http-parse-simple.py
+++ b/examples/networking/http_filter/http-parse-simple.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
#Bertrone Matteo - Polytechnic of Turin
#November 2015
diff --git a/examples/networking/neighbor_sharing/tc_neighbor_sharing.py b/examples/networking/neighbor_sharing/tc_neighbor_sharing.py
index 43799c9..8d13c43 100755
--- a/examples/networking/neighbor_sharing/tc_neighbor_sharing.py
+++ b/examples/networking/neighbor_sharing/tc_neighbor_sharing.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# Copyright (c) PLUMgrid, Inc.
# Licensed under the Apache License, Version 2.0 (the "License")
diff --git a/examples/networking/simple_tc.py b/examples/networking/simple_tc.py
index 4dd8aa5..ec0a3e7 100755
--- a/examples/networking/simple_tc.py
+++ b/examples/networking/simple_tc.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# Copyright (c) PLUMgrid, Inc.
# Licensed under the Apache License, Version 2.0 (the "License")
diff --git a/examples/networking/tc_perf_event.py b/examples/networking/tc_perf_event.py
index 40e7411..4a1b754 100755
--- a/examples/networking/tc_perf_event.py
+++ b/examples/networking/tc_perf_event.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# tc_perf_event.py Output skb and meta data through perf event
#
diff --git a/examples/networking/tunnel_monitor/main.py b/examples/networking/tunnel_monitor/main.py
index d3359ef..7d3acb8 100755
--- a/examples/networking/tunnel_monitor/main.py
+++ b/examples/networking/tunnel_monitor/main.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# Copyright (c) PLUMgrid, Inc.
# Licensed under the Apache License, Version 2.0 (the "License")
diff --git a/examples/networking/tunnel_monitor/monitor.py b/examples/networking/tunnel_monitor/monitor.py
index bac3420..fb3613e 100644
--- a/examples/networking/tunnel_monitor/monitor.py
+++ b/examples/networking/tunnel_monitor/monitor.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# Copyright (c) PLUMgrid, Inc.
# Licensed under the Apache License, Version 2.0 (the "License")
diff --git a/examples/networking/vlan_filter/data-plane-tracing.py b/examples/networking/vlan_filter/data-plane-tracing.py
index 975552f..efaa7f1 100755
--- a/examples/networking/vlan_filter/data-plane-tracing.py
+++ b/examples/networking/vlan_filter/data-plane-tracing.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
from __future__ import print_function
from bcc import BPF
diff --git a/examples/networking/vlan_learning/vlan_learning.py b/examples/networking/vlan_learning/vlan_learning.py
index a902320..7229176 100755
--- a/examples/networking/vlan_learning/vlan_learning.py
+++ b/examples/networking/vlan_learning/vlan_learning.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# Copyright (c) PLUMgrid, Inc.
# Licensed under the Apache License, Version 2.0 (the "License")
diff --git a/examples/networking/xdp/xdp_drop_count.py b/examples/networking/xdp/xdp_drop_count.py
index f04cb15..9b228d4 100755
--- a/examples/networking/xdp/xdp_drop_count.py
+++ b/examples/networking/xdp/xdp_drop_count.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# xdp_drop_count.py Drop incoming packets on XDP layer and count for which
# protocol type
diff --git a/examples/networking/xdp/xdp_macswap_count.py b/examples/networking/xdp/xdp_macswap_count.py
index 145d004..bb4107e 100755
--- a/examples/networking/xdp/xdp_macswap_count.py
+++ b/examples/networking/xdp/xdp_macswap_count.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# xdp_macswap_count.py Swap Source and Destination MAC addresses on
# incoming packets and transmit packets back on
diff --git a/examples/networking/xdp/xdp_redirect_cpu.py b/examples/networking/xdp/xdp_redirect_cpu.py
index f7aa2bc..15b0d09 100755
--- a/examples/networking/xdp/xdp_redirect_cpu.py
+++ b/examples/networking/xdp/xdp_redirect_cpu.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# xdp_redirect_cpu.py Redirect the incoming packet to the specific CPU
#
diff --git a/examples/networking/xdp/xdp_redirect_map.py b/examples/networking/xdp/xdp_redirect_map.py
index e3b90a3..4a62272 100755
--- a/examples/networking/xdp/xdp_redirect_map.py
+++ b/examples/networking/xdp/xdp_redirect_map.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# xdp_redirect_map.py Redirect the incoming packet to another interface
# with the helper: bpf_redirect_map()
diff --git a/examples/tracing/bitehist.py b/examples/tracing/bitehist.py
index 410424b..c8c7f7a 100755
--- a/examples/tracing/bitehist.py
+++ b/examples/tracing/bitehist.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# bitehist.py Block I/O size histogram.
# For Linux, uses BCC, eBPF. Embedded C.
diff --git a/examples/tracing/disksnoop.py b/examples/tracing/disksnoop.py
index c30ac0a..ed3dd81 100755
--- a/examples/tracing/disksnoop.py
+++ b/examples/tracing/disksnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# disksnoop.py Trace block device I/O: basic version of iosnoop.
# For Linux, uses BCC, eBPF. Embedded C.
diff --git a/examples/tracing/hello_fields.py b/examples/tracing/hello_fields.py
index bad1a22..be53e62 100755
--- a/examples/tracing/hello_fields.py
+++ b/examples/tracing/hello_fields.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# This is a Hello World example that formats output as fields.
diff --git a/examples/tracing/hello_perf_output.py b/examples/tracing/hello_perf_output.py
index eb1e997..7decd58 100755
--- a/examples/tracing/hello_perf_output.py
+++ b/examples/tracing/hello_perf_output.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# This is a Hello World example that uses BPF_PERF_OUTPUT.
diff --git a/examples/tracing/kvm_hypercall.py b/examples/tracing/kvm_hypercall.py
index 322bb8e..5f1d3d7 100755
--- a/examples/tracing/kvm_hypercall.py
+++ b/examples/tracing/kvm_hypercall.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# kvm_hypercall.py
#
diff --git a/examples/tracing/mallocstacks.py b/examples/tracing/mallocstacks.py
index 4820447..2f3eb25 100644
--- a/examples/tracing/mallocstacks.py
+++ b/examples/tracing/mallocstacks.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# mallocstacks Trace malloc() calls in a process and print the full
# stack trace for all callsites.
diff --git a/examples/tracing/mysqld_query.py b/examples/tracing/mysqld_query.py
index cf877d1..15ff297 100755
--- a/examples/tracing/mysqld_query.py
+++ b/examples/tracing/mysqld_query.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# mysqld_query Trace MySQL server queries. Example of USDT tracing.
# For Linux, uses BCC, BPF. Embedded C.
diff --git a/examples/tracing/nodejs_http_server.py b/examples/tracing/nodejs_http_server.py
index 367e9d7..1017de5 100755
--- a/examples/tracing/nodejs_http_server.py
+++ b/examples/tracing/nodejs_http_server.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# nodejs_http_server Basic example of node.js USDT tracing.
# For Linux, uses BCC, BPF. Embedded C.
diff --git a/examples/tracing/stacksnoop.py b/examples/tracing/stacksnoop.py
index d16b59d..bced93f 100755
--- a/examples/tracing/stacksnoop.py
+++ b/examples/tracing/stacksnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# stacksnoop Trace a kernel function and print all kernel stack traces.
# For Linux, uses BCC, eBPF, and currently x86_64 only. Inline C.
diff --git a/examples/tracing/strlen_count.py b/examples/tracing/strlen_count.py
index 103464f..49d7080 100755
--- a/examples/tracing/strlen_count.py
+++ b/examples/tracing/strlen_count.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# strlen_count Trace strlen() and print a frequency count of strings.
# For Linux, uses BCC, eBPF. Embedded C.
diff --git a/examples/tracing/strlen_hist.py b/examples/tracing/strlen_hist.py
index 4652c4a..dda1cb2 100755
--- a/examples/tracing/strlen_hist.py
+++ b/examples/tracing/strlen_hist.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# strlen_hist.py Histogram of system-wide strlen return values
diff --git a/examples/tracing/strlen_snoop.py b/examples/tracing/strlen_snoop.py
index 44be1ac..c3c7199 100755
--- a/examples/tracing/strlen_snoop.py
+++ b/examples/tracing/strlen_snoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# strlen_snoop Trace strlen() library function for a given PID.
# For Linux, uses BCC, eBPF. Embedded C.
diff --git a/examples/tracing/sync_timing.py b/examples/tracing/sync_timing.py
index a00bf5a..675ad14 100755
--- a/examples/tracing/sync_timing.py
+++ b/examples/tracing/sync_timing.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# sync_timing.py Trace time between syncs.
# For Linux, uses BCC, eBPF. Embedded C.
diff --git a/examples/tracing/task_switch.py b/examples/tracing/task_switch.py
index 46d43ba..161edfb 100755
--- a/examples/tracing/task_switch.py
+++ b/examples/tracing/task_switch.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# Copyright (c) PLUMgrid, Inc.
# Licensed under the Apache License, Version 2.0 (the "License")
diff --git a/examples/tracing/tcpv4connect.py b/examples/tracing/tcpv4connect.py
index 5b03717..8a89469 100755
--- a/examples/tracing/tcpv4connect.py
+++ b/examples/tracing/tcpv4connect.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# tcpv4connect Trace TCP IPv4 connect()s.
# For Linux, uses BCC, eBPF. Embedded C.
diff --git a/examples/tracing/trace_fields.py b/examples/tracing/trace_fields.py
index 63a7b53..8b57f9a 100755
--- a/examples/tracing/trace_fields.py
+++ b/examples/tracing/trace_fields.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# Copyright (c) PLUMgrid, Inc.
# Licensed under the Apache License, Version 2.0 (the "License")
diff --git a/examples/tracing/trace_perf_output.py b/examples/tracing/trace_perf_output.py
index 865a459..26333c8 100755
--- a/examples/tracing/trace_perf_output.py
+++ b/examples/tracing/trace_perf_output.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# Copyright (c) PLUMgrid, Inc.
# Licensed under the Apache License, Version 2.0 (the "License")
diff --git a/examples/tracing/urandomread-explicit.py b/examples/tracing/urandomread-explicit.py
index 7be545a..448ffdf 100755
--- a/examples/tracing/urandomread-explicit.py
+++ b/examples/tracing/urandomread-explicit.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# urandomread-explicit Example of instrumenting a kernel tracepoint.
# For Linux, uses BCC, BPF. Embedded C.
diff --git a/examples/tracing/urandomread.py b/examples/tracing/urandomread.py
index 80ea9de..319db2c 100755
--- a/examples/tracing/urandomread.py
+++ b/examples/tracing/urandomread.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# urandomread Example of instrumenting a kernel tracepoint.
# For Linux, uses BCC, BPF. Embedded C.
diff --git a/examples/tracing/vfsreadlat.py b/examples/tracing/vfsreadlat.py
index f4daae5..b2c4156 100755
--- a/examples/tracing/vfsreadlat.py
+++ b/examples/tracing/vfsreadlat.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# vfsreadlat.py VFS read latency distribution.
# For Linux, uses BCC, eBPF. See .c file.
diff --git a/examples/usdt_sample/scripts/lat_avg.py b/examples/usdt_sample/scripts/lat_avg.py
index 36c4dbb..48e7db5 100755
--- a/examples/usdt_sample/scripts/lat_avg.py
+++ b/examples/usdt_sample/scripts/lat_avg.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
import argparse
from time import sleep, strftime
from sys import argv
diff --git a/examples/usdt_sample/scripts/lat_dist.py b/examples/usdt_sample/scripts/lat_dist.py
index 647f295..782c960 100755
--- a/examples/usdt_sample/scripts/lat_dist.py
+++ b/examples/usdt_sample/scripts/lat_dist.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
import argparse
from time import sleep, strftime
from sys import argv
diff --git a/examples/usdt_sample/scripts/latency.py b/examples/usdt_sample/scripts/latency.py
index d46f2ef..8a7ec08 100755
--- a/examples/usdt_sample/scripts/latency.py
+++ b/examples/usdt_sample/scripts/latency.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
import argparse
from time import sleep
from sys import argv
diff --git a/tools/argdist.py b/tools/argdist.py
index bbf6273..695b5b3 100755
--- a/tools/argdist.py
+++ b/tools/argdist.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# argdist Trace a function and display a distribution of its
# parameter values as a histogram or frequency count.
diff --git a/tools/bashreadline.py b/tools/bashreadline.py
index 3d74c93..da9c1b7 100755
--- a/tools/bashreadline.py
+++ b/tools/bashreadline.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# bashreadline Print entered bash commands from all running shells.
# For Linux, uses BCC, eBPF. Embedded C.
diff --git a/tools/biolatency.py b/tools/biolatency.py
index dcb6d26..a265c31 100755
--- a/tools/biolatency.py
+++ b/tools/biolatency.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# biolatency Summarize block device I/O latency as a histogram.
diff --git a/tools/biosnoop.py b/tools/biosnoop.py
index 51b3a7f..259a81b 100755
--- a/tools/biosnoop.py
+++ b/tools/biosnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# biosnoop Trace block device I/O and print details including issuing PID.
diff --git a/tools/biotop.py b/tools/biotop.py
index 3fe454c..62c295d 100755
--- a/tools/biotop.py
+++ b/tools/biotop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# biotop block device (disk) I/O by process.
diff --git a/tools/bitesize.py b/tools/bitesize.py
index e57185d..f70f091 100755
--- a/tools/bitesize.py
+++ b/tools/bitesize.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# bitehist.py Block I/O size histogram.
# For Linux, uses BCC, eBPF. See .c file.
diff --git a/tools/bpflist.py b/tools/bpflist.py
index 85220b6..f73e945 100755
--- a/tools/bpflist.py
+++ b/tools/bpflist.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# bpflist Display processes currently using BPF programs and maps,
# pinned BPF programs and maps, and enabled probes.
diff --git a/tools/btrfsdist.py b/tools/btrfsdist.py
index a0aeb24..4659ab4 100755
--- a/tools/btrfsdist.py
+++ b/tools/btrfsdist.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# btrfsdist Summarize btrfs operation latency.
diff --git a/tools/btrfsslower.py b/tools/btrfsslower.py
index cff61b8..0a59820 100755
--- a/tools/btrfsslower.py
+++ b/tools/btrfsslower.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# btrfsslower Trace slow btrfs operations.
diff --git a/tools/cachestat.py b/tools/cachestat.py
index 90a55b0..b00c804 100755
--- a/tools/cachestat.py
+++ b/tools/cachestat.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# cachestat Count cache kernel function calls.
# For Linux, uses BCC, eBPF. See .c file.
diff --git a/tools/cachetop.py b/tools/cachetop.py
index 51ddace..59de391 100755
--- a/tools/cachetop.py
+++ b/tools/cachetop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# cachetop Count cache kernel function calls per processes
diff --git a/tools/capable.py b/tools/capable.py
index 368f4b0..65ffa77 100755
--- a/tools/capable.py
+++ b/tools/capable.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# capable Trace security capabilitiy checks (cap_capable()).
diff --git a/tools/cpudist.py b/tools/cpudist.py
index 9e61341..4d7c9eb 100755
--- a/tools/cpudist.py
+++ b/tools/cpudist.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# cpudist Summarize on- and off-CPU time per task as a histogram.
diff --git a/tools/cpuunclaimed.py b/tools/cpuunclaimed.py
index c899398..b862bad 100755
--- a/tools/cpuunclaimed.py
+++ b/tools/cpuunclaimed.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# cpuunclaimed Sample CPU run queues and calculate unclaimed idle CPU.
diff --git a/tools/criticalstat.py b/tools/criticalstat.py
index 8126b49..da28594 100755
--- a/tools/criticalstat.py
+++ b/tools/criticalstat.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# criticalstat Trace long critical sections (IRQs or preemption disabled)
diff --git a/tools/dbslower.py b/tools/dbslower.py
index a42df87..24e6394 100755
--- a/tools/dbslower.py
+++ b/tools/dbslower.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# dbslower Trace MySQL and PostgreSQL queries slower than a threshold.
#
diff --git a/tools/dbstat.py b/tools/dbstat.py
index 1d98436..a89b097 100755
--- a/tools/dbstat.py
+++ b/tools/dbstat.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# dbstat Display a histogram of MySQL and PostgreSQL query latencies.
#
diff --git a/tools/dcsnoop.py b/tools/dcsnoop.py
index 1452191..4c37571 100755
--- a/tools/dcsnoop.py
+++ b/tools/dcsnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# dcsnoop Trace directory entry cache (dcache) lookups.
diff --git a/tools/dcstat.py b/tools/dcstat.py
index 2009a19..5ecddd1 100755
--- a/tools/dcstat.py
+++ b/tools/dcstat.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# dcstat Directory entry cache (dcache) stats.
diff --git a/tools/deadlock_detector.py b/tools/deadlock_detector.py
index cbc0691..573f830 100755
--- a/tools/deadlock_detector.py
+++ b/tools/deadlock_detector.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# deadlock_detector Detects potential deadlocks (lock order inversions)
# on a running process. For Linux, uses BCC, eBPF.
diff --git a/tools/execsnoop.py b/tools/execsnoop.py
index e27e50e..0c2c065 100755
--- a/tools/execsnoop.py
+++ b/tools/execsnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# execsnoop Trace new processes via exec() syscalls.
diff --git a/tools/ext4dist.py b/tools/ext4dist.py
index b71cfda..bc797fb 100755
--- a/tools/ext4dist.py
+++ b/tools/ext4dist.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# ext4dist Summarize ext4 operation latency.
diff --git a/tools/ext4slower.py b/tools/ext4slower.py
index 344e68f..16b56ec 100755
--- a/tools/ext4slower.py
+++ b/tools/ext4slower.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# ext4slower Trace slow ext4 operations.
diff --git a/tools/filelife.py b/tools/filelife.py
index 4095273..f66f00b 100755
--- a/tools/filelife.py
+++ b/tools/filelife.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# filelife Trace the lifespan of short-lived files.
diff --git a/tools/fileslower.py b/tools/fileslower.py
index 219a94a..e2830e9 100755
--- a/tools/fileslower.py
+++ b/tools/fileslower.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# fileslower Trace slow synchronous file reads and writes.
diff --git a/tools/filetop.py b/tools/filetop.py
index 91e098e..03c01f4 100755
--- a/tools/filetop.py
+++ b/tools/filetop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# filetop file reads and writes by process.
diff --git a/tools/funccount.py b/tools/funccount.py
index fcb96b8..69dd01c 100755
--- a/tools/funccount.py
+++ b/tools/funccount.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# funccount Count functions, tracepoints, and USDT probes.
diff --git a/tools/funclatency.py b/tools/funclatency.py
index f23d8f0..3f08a7e 100755
--- a/tools/funclatency.py
+++ b/tools/funclatency.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# funclatency Time functions and print latency as a histogram.
diff --git a/tools/funcslower.py b/tools/funcslower.py
index 2143583..283c801 100755
--- a/tools/funcslower.py
+++ b/tools/funcslower.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# funcslower Trace slow kernel or user function calls.
diff --git a/tools/gethostlatency.py b/tools/gethostlatency.py
index 84c7988..8d07e23 100755
--- a/tools/gethostlatency.py
+++ b/tools/gethostlatency.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# gethostlatency Show latency for getaddrinfo/gethostbyname[2] calls.
# For Linux, uses BCC, eBPF. Embedded C.
diff --git a/tools/hardirqs.py b/tools/hardirqs.py
index 1f5983a..589a890 100755
--- a/tools/hardirqs.py
+++ b/tools/hardirqs.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# hardirqs Summarize hard IRQ (interrupt) event time.
diff --git a/tools/inject.py b/tools/inject.py
index 2cf9909..fa2d388 100755
--- a/tools/inject.py
+++ b/tools/inject.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# This script generates a BPF program with structure inspired by trace.py. The
# generated program operates on PID-indexed stacks. Generally speaking,
diff --git a/tools/killsnoop.py b/tools/killsnoop.py
index ce03d37..16221a2 100755
--- a/tools/killsnoop.py
+++ b/tools/killsnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# killsnoop Trace signals issued by the kill() syscall.
diff --git a/tools/lib/ucalls.py b/tools/lib/ucalls.py
index 3b90b91..352e4d7 100755
--- a/tools/lib/ucalls.py
+++ b/tools/lib/ucalls.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# ucalls Summarize method calls in high-level languages and/or system calls.
diff --git a/tools/lib/uflow.py b/tools/lib/uflow.py
index 2bfe36b..63fab87 100755
--- a/tools/lib/uflow.py
+++ b/tools/lib/uflow.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# uflow Trace method execution flow in high-level languages.
diff --git a/tools/lib/ugc.py b/tools/lib/ugc.py
index 77f125e..8841d5f 100755
--- a/tools/lib/ugc.py
+++ b/tools/lib/ugc.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# ugc Summarize garbage collection events in high-level languages.
diff --git a/tools/lib/uobjnew.py b/tools/lib/uobjnew.py
index 8159f9a..85f5768 100755
--- a/tools/lib/uobjnew.py
+++ b/tools/lib/uobjnew.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# uobjnew Summarize object allocations in high-level languages.
diff --git a/tools/lib/ustat.py b/tools/lib/ustat.py
index ef29d76..1edc985 100755
--- a/tools/lib/ustat.py
+++ b/tools/lib/ustat.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# ustat Activity stats from high-level languages, including exceptions,
diff --git a/tools/lib/uthreads.py b/tools/lib/uthreads.py
index 00dd68b..90d0a74 100755
--- a/tools/lib/uthreads.py
+++ b/tools/lib/uthreads.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# uthreads Trace thread creation/destruction events in high-level languages.
diff --git a/tools/llcstat.py b/tools/llcstat.py
index 01a63fd..7b7bc47 100755
--- a/tools/llcstat.py
+++ b/tools/llcstat.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# llcstat.py Summarize cache references and cache misses by PID.
# Cache reference and cache miss are corresponding events defined in
diff --git a/tools/mdflush.py b/tools/mdflush.py
index 507614b..485635d 100755
--- a/tools/mdflush.py
+++ b/tools/mdflush.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# mdflush Trace md flush events.
diff --git a/tools/memleak.py b/tools/memleak.py
index 4021bf8..64c5972 100755
--- a/tools/memleak.py
+++ b/tools/memleak.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# memleak Trace and display outstanding allocations to detect
# memory leaks in user-mode processes and the kernel.
diff --git a/tools/mountsnoop.py b/tools/mountsnoop.py
index b6f96ca..eefb4ec 100755
--- a/tools/mountsnoop.py
+++ b/tools/mountsnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# mountsnoop Trace mount() and umount syscalls.
# For Linux, uses BCC, eBPF. Embedded C.
diff --git a/tools/mysqld_qslower.py b/tools/mysqld_qslower.py
index 5737d18..ab23b5b 100755
--- a/tools/mysqld_qslower.py
+++ b/tools/mysqld_qslower.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# mysqld_qslower MySQL server queries slower than a threshold.
# For Linux, uses BCC, BPF. Embedded C.
diff --git a/tools/nfsdist.py b/tools/nfsdist.py
index e3317a4..ff78506 100755
--- a/tools/nfsdist.py
+++ b/tools/nfsdist.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# nfsdist Summarize NFS operation latency
diff --git a/tools/nfsslower.py b/tools/nfsslower.py
index 8113eff..32e91c7 100755
--- a/tools/nfsslower.py
+++ b/tools/nfsslower.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# nfsslower Trace slow NFS operations
diff --git a/tools/offcputime.py b/tools/offcputime.py
index 6440260..d84ae52 100755
--- a/tools/offcputime.py
+++ b/tools/offcputime.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# offcputime Summarize off-CPU time by stack trace
# For Linux, uses BCC, eBPF.
diff --git a/tools/offwaketime.py b/tools/offwaketime.py
index 3c4f0f3..38a9ff2 100755
--- a/tools/offwaketime.py
+++ b/tools/offwaketime.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# offwaketime Summarize blocked time by kernel off-CPU stack + waker stack
# For Linux, uses BCC, eBPF.
diff --git a/tools/old/bashreadline.py b/tools/old/bashreadline.py
index c4b8ec2..571b662 100755
--- a/tools/old/bashreadline.py
+++ b/tools/old/bashreadline.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# bashreadline Print entered bash commands from all running shells.
# For Linux, uses BCC, eBPF. Embedded C.
diff --git a/tools/old/biosnoop.py b/tools/old/biosnoop.py
index 96db56b..37ee3f9 100755
--- a/tools/old/biosnoop.py
+++ b/tools/old/biosnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# biosnoop Trace block device I/O and print details including issuing PID.
diff --git a/tools/old/filelife.py b/tools/old/filelife.py
index af64b53..075be08 100755
--- a/tools/old/filelife.py
+++ b/tools/old/filelife.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# filelife Trace the lifespan of short-lived files.
diff --git a/tools/old/gethostlatency.py b/tools/old/gethostlatency.py
index 4d87c83..7d32cb8 100755
--- a/tools/old/gethostlatency.py
+++ b/tools/old/gethostlatency.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# gethostlatency Show latency for getaddrinfo/gethostbyname[2] calls.
# For Linux, uses BCC, eBPF. Embedded C.
diff --git a/tools/old/killsnoop.py b/tools/old/killsnoop.py
index e2d4cb5..ddf9d5a 100755
--- a/tools/old/killsnoop.py
+++ b/tools/old/killsnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# killsnoop Trace signals issued by the kill() syscall.
diff --git a/tools/old/memleak.py b/tools/old/memleak.py
index b962c99..eca685f 100755
--- a/tools/old/memleak.py
+++ b/tools/old/memleak.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# memleak Trace and display outstanding allocations to detect
# memory leaks in user-mode processes and the kernel.
diff --git a/tools/old/offcputime.py b/tools/old/offcputime.py
index dc89063..38d12a2 100755
--- a/tools/old/offcputime.py
+++ b/tools/old/offcputime.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# offcputime Summarize off-CPU time by kernel stack trace
# For Linux, uses BCC, eBPF.
diff --git a/tools/old/offwaketime.py b/tools/old/offwaketime.py
index b5fdd0f..3b5bb36 100755
--- a/tools/old/offwaketime.py
+++ b/tools/old/offwaketime.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# offwaketime Summarize blocked time by kernel off-CPU stack + waker stack
# For Linux, uses BCC, eBPF.
diff --git a/tools/old/oomkill.py b/tools/old/oomkill.py
index b99f852..0973cfb 100755
--- a/tools/old/oomkill.py
+++ b/tools/old/oomkill.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# oomkill Trace oom_kill_process(). For Linux, uses BCC, eBPF.
#
diff --git a/tools/old/opensnoop.py b/tools/old/opensnoop.py
index 3736ec2..5df3b41 100755
--- a/tools/old/opensnoop.py
+++ b/tools/old/opensnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# opensnoop Trace open() syscalls.
diff --git a/tools/old/profile.py b/tools/old/profile.py
index f0328d2..e308208 100755
--- a/tools/old/profile.py
+++ b/tools/old/profile.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# profile Profile CPU usage by sampling stack traces at a timed interval.
diff --git a/tools/old/softirqs.py b/tools/old/softirqs.py
index 30495bc..3b40b1a 100755
--- a/tools/old/softirqs.py
+++ b/tools/old/softirqs.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# softirqs Summarize soft IRQ (interrupt) event time.
diff --git a/tools/old/stackcount.py b/tools/old/stackcount.py
index 6eee27f..108c800 100755
--- a/tools/old/stackcount.py
+++ b/tools/old/stackcount.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# stackcount Count kernel function calls and their stack traces.
# For Linux, uses BCC, eBPF.
diff --git a/tools/old/stacksnoop.py b/tools/old/stacksnoop.py
index 238ab82..9fcc12b 100755
--- a/tools/old/stacksnoop.py
+++ b/tools/old/stacksnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# stacksnoop Trace a kernel function and print all kernel stack traces.
# For Linux, uses BCC, eBPF, and currently x86_64 only. Inline C.
diff --git a/tools/old/statsnoop.py b/tools/old/statsnoop.py
index 82128c2..ad54ac7 100755
--- a/tools/old/statsnoop.py
+++ b/tools/old/statsnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# statsnoop Trace stat() syscalls.
diff --git a/tools/old/syncsnoop.py b/tools/old/syncsnoop.py
index b14309d..cae57ea 100755
--- a/tools/old/syncsnoop.py
+++ b/tools/old/syncsnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# syncsnoop Trace sync() syscall.
diff --git a/tools/old/tcpaccept.py b/tools/old/tcpaccept.py
index cc0c240..8125eaa 100755
--- a/tools/old/tcpaccept.py
+++ b/tools/old/tcpaccept.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# tcpaccept Trace TCP accept()s.
diff --git a/tools/old/tcpconnect.py b/tools/old/tcpconnect.py
index e0a59e9..579a85f 100755
--- a/tools/old/tcpconnect.py
+++ b/tools/old/tcpconnect.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# tcpconnect Trace TCP connect()s.
diff --git a/tools/old/wakeuptime.py b/tools/old/wakeuptime.py
index 512e4f4..783c7ff 100644
--- a/tools/old/wakeuptime.py
+++ b/tools/old/wakeuptime.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# wakeuptime Summarize sleep to wakeup time by waker kernel stack
# For Linux, uses BCC, eBPF.
diff --git a/tools/oomkill.py b/tools/oomkill.py
index db3a537..16defe0 100755
--- a/tools/oomkill.py
+++ b/tools/oomkill.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# oomkill Trace oom_kill_process(). For Linux, uses BCC, eBPF.
#
diff --git a/tools/opensnoop.py b/tools/opensnoop.py
index 4cb4dbb..55db352 100755
--- a/tools/opensnoop.py
+++ b/tools/opensnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# opensnoop Trace open() syscalls.
diff --git a/tools/pidpersec.py b/tools/pidpersec.py
index aff1219..c449004 100755
--- a/tools/pidpersec.py
+++ b/tools/pidpersec.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# pidpersec Count new processes (via fork).
diff --git a/tools/profile.py b/tools/profile.py
index 084ac63..d1d3d26 100755
--- a/tools/profile.py
+++ b/tools/profile.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# profile Profile CPU usage by sampling stack traces at a timed interval.
diff --git a/tools/runqlat.py b/tools/runqlat.py
index 9c56d22..9fd4064 100755
--- a/tools/runqlat.py
+++ b/tools/runqlat.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# runqlat Run queue (scheduler) latency as a histogram.
diff --git a/tools/runqlen.py b/tools/runqlen.py
index 4ff515d..b56a591 100755
--- a/tools/runqlen.py
+++ b/tools/runqlen.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# runqlen Summarize scheduler run queue length as a histogram.
diff --git a/tools/runqslower.py b/tools/runqslower.py
index 0b3e1c1..bd1138e 100755
--- a/tools/runqslower.py
+++ b/tools/runqslower.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# runqslower Trace long process scheduling delays.
diff --git a/tools/shmsnoop.py b/tools/shmsnoop.py
index 20fcbd7..bb50535 100755
--- a/tools/shmsnoop.py
+++ b/tools/shmsnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# shmsnoop Trace shm*() syscalls.
diff --git a/tools/slabratetop.py b/tools/slabratetop.py
index ab6c08c..101c585 100755
--- a/tools/slabratetop.py
+++ b/tools/slabratetop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# slabratetop Summarize kmem_cache_alloc() calls.
diff --git a/tools/sofdsnoop.py b/tools/sofdsnoop.py
index f633107..77f8f14 100755
--- a/tools/sofdsnoop.py
+++ b/tools/sofdsnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# sofdsnoop traces file descriptors passed via socket
diff --git a/tools/softirqs.py b/tools/softirqs.py
index 10ebc38..1e2daf5 100755
--- a/tools/softirqs.py
+++ b/tools/softirqs.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# softirqs Summarize soft IRQ (interrupt) event time.
diff --git a/tools/solisten.py b/tools/solisten.py
index 81e82e0..bced0a2 100755
--- a/tools/solisten.py
+++ b/tools/solisten.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# solisten Trace TCP listen events
# For Linux, uses BCC, eBPF. Embedded C.
diff --git a/tools/sslsniff.py b/tools/sslsniff.py
index f7bc117..265e87f 100755
--- a/tools/sslsniff.py
+++ b/tools/sslsniff.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# sslsniff Captures data on read/recv or write/send functions of OpenSSL,
# GnuTLS and NSS
diff --git a/tools/stackcount.py b/tools/stackcount.py
index 5554014..9dfc06f 100755
--- a/tools/stackcount.py
+++ b/tools/stackcount.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# stackcount Count events and their stack traces.
# For Linux, uses BCC, eBPF.
diff --git a/tools/statsnoop.py b/tools/statsnoop.py
index 9e585be..516eda2 100755
--- a/tools/statsnoop.py
+++ b/tools/statsnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# statsnoop Trace stat() syscalls.
diff --git a/tools/syncsnoop.py b/tools/syncsnoop.py
index eb892ba..708fbc4 100755
--- a/tools/syncsnoop.py
+++ b/tools/syncsnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# syncsnoop Trace sync() syscall.
diff --git a/tools/syscount.py b/tools/syscount.py
index 58039be..486953c 100755
--- a/tools/syscount.py
+++ b/tools/syscount.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# syscount Summarize syscall counts and latencies.
#
diff --git a/tools/tcpaccept.py b/tools/tcpaccept.py
index 5a7bbb8..b128086 100755
--- a/tools/tcpaccept.py
+++ b/tools/tcpaccept.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# tcpaccept Trace TCP accept()s.
diff --git a/tools/tcpconnect.py b/tools/tcpconnect.py
index 5ca6851..54364c9 100755
--- a/tools/tcpconnect.py
+++ b/tools/tcpconnect.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# tcpconnect Trace TCP connect()s.
diff --git a/tools/tcpconnlat.py b/tools/tcpconnlat.py
index 92dc2c1..9f25f0f 100755
--- a/tools/tcpconnlat.py
+++ b/tools/tcpconnlat.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# tcpconnlat Trace TCP active connection latency (connect).
diff --git a/tools/tcpdrop.py b/tools/tcpdrop.py
index 82f66a7..ca89be6 100755
--- a/tools/tcpdrop.py
+++ b/tools/tcpdrop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# tcpdrop Trace TCP kernel-dropped packets/segments.
diff --git a/tools/tcplife.py b/tools/tcplife.py
index e7d29d4..4639582 100755
--- a/tools/tcplife.py
+++ b/tools/tcplife.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# tcplife Trace the lifespan of TCP sessions and summarize.
diff --git a/tools/tcpretrans.py b/tools/tcpretrans.py
index 442fd3e..47ac8c1 100755
--- a/tools/tcpretrans.py
+++ b/tools/tcpretrans.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# tcpretrans Trace or count TCP retransmits and TLPs.
diff --git a/tools/tcpstates.py b/tools/tcpstates.py
index 736de97..4a21f02 100755
--- a/tools/tcpstates.py
+++ b/tools/tcpstates.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# -*- coding: utf-8 -*-
# @lint-avoid-python-3-compatibility-imports
#
diff --git a/tools/tcpsubnet.py b/tools/tcpsubnet.py
index bf944e1..5f2a806 100755
--- a/tools/tcpsubnet.py
+++ b/tools/tcpsubnet.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# tcpsubnet Summarize TCP bytes sent to different subnets.
diff --git a/tools/tcptop.py b/tools/tcptop.py
index a8451d2..e1eb241 100755
--- a/tools/tcptop.py
+++ b/tools/tcptop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# tcptop Summarize TCP send/recv throughput by host.
diff --git a/tools/tcptracer.py b/tools/tcptracer.py
index 8f272eb..cc92c3f 100755
--- a/tools/tcptracer.py
+++ b/tools/tcptracer.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# tcpv4tracer Trace TCP connections.
# For Linux, uses BCC, eBPF. Embedded C.
diff --git a/tools/tplist.py b/tools/tplist.py
index db4b68b..6ec2fbe 100755
--- a/tools/tplist.py
+++ b/tools/tplist.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# tplist Display kernel tracepoints or USDT probes and their formats.
#
diff --git a/tools/trace.py b/tools/trace.py
index e1845da..e066240 100755
--- a/tools/trace.py
+++ b/tools/trace.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# trace Trace a function and print a trace message based on its
# parameters, with an optional filter.
diff --git a/tools/ttysnoop.py b/tools/ttysnoop.py
index aa18d24..07f272f 100755
--- a/tools/ttysnoop.py
+++ b/tools/ttysnoop.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# ttysnoop Watch live output from a tty or pts device.
diff --git a/tools/vfscount.py b/tools/vfscount.py
index 285cd8b..10c6b1e 100755
--- a/tools/vfscount.py
+++ b/tools/vfscount.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# vfscount Count VFS calls ("vfs_*").
diff --git a/tools/vfsstat.py b/tools/vfsstat.py
index 4a55f8c..1764c60 100755
--- a/tools/vfsstat.py
+++ b/tools/vfsstat.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# vfsstat Count some VFS calls.
diff --git a/tools/wakeuptime.py b/tools/wakeuptime.py
index 68e8857..18e70e4 100755
--- a/tools/wakeuptime.py
+++ b/tools/wakeuptime.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
#
# wakeuptime Summarize sleep to wakeup time by waker kernel stack
# For Linux, uses BCC, eBPF.
diff --git a/tools/xfsdist.py b/tools/xfsdist.py
index 1a7fdd9..f409f90 100755
--- a/tools/xfsdist.py
+++ b/tools/xfsdist.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# xfsdist Summarize XFS operation latency.
diff --git a/tools/xfsslower.py b/tools/xfsslower.py
index 5b4e0a2..b79527b 100755
--- a/tools/xfsslower.py
+++ b/tools/xfsslower.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# xfsslower Trace slow XFS operations.
diff --git a/tools/zfsdist.py b/tools/zfsdist.py
index 9330739..6b29b99 100755
--- a/tools/zfsdist.py
+++ b/tools/zfsdist.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# zfsdist Summarize ZFS operation latency.
diff --git a/tools/zfsslower.py b/tools/zfsslower.py
index 6f0382a..7bf160b 100755
--- a/tools/zfsslower.py
+++ b/tools/zfsslower.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
# @lint-avoid-python-3-compatibility-imports
#
# zfsslower Trace slow ZFS operations.