commit 0a436339b373b59987e9ec40787ab9912f929979
author Luca Rupp <lumru@users.noreply.github.com> Thu May 10 08:45:30 2018 +0200
committer yonghong-song <ys114321@gmail.com> Wed May 09 23:45:30 2018 -0700
tree 8124502c00200785462c25fc0fb53f95c7c09d66
parent a91c8c24704ffca4cfb33c30fd07e1794905e9c2

Fix issue #1744. (#1746)

- Fix a crash in the python binding when trying to open a perf buffer
    in python < 3.6
- See https://github.com/iovisor/bcc/issues/1744

src/python/bcc/__init__.py

diff --git a/src/python/bcc/__init__.py b/src/python/bcc/__init__.py
index 4cb4cf6..faea319 100644
--- a/src/python/bcc/__init__.py
+++ b/src/python/bcc/__init__.py
@@ -445,12 +445,12 @@
         if map_fd < 0:
             raise KeyError
         if not keytype:
-            key_desc = lib.bpf_table_key_desc(self.module, name)
+            key_desc = lib.bpf_table_key_desc(self.module, name).decode("utf-8")
             if not key_desc:
                 raise Exception("Failed to load BPF Table %s key desc" % name)
             keytype = BPF._decode_table_type(json.loads(key_desc))
         if not leaftype:
-            leaf_desc = lib.bpf_table_leaf_desc(self.module, name)
+            leaf_desc = lib.bpf_table_leaf_desc(self.module, name).decode("utf-8")
             if not leaf_desc:
                 raise Exception("Failed to load BPF Table %s leaf desc" % name)
             leaftype = BPF._decode_table_type(json.loads(leaf_desc))