commit ac6f4d2db703c0ff88e496bcb7b7fe55cf2ac458
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Wed Feb 12 04:32:52 2020 -0800
committer GitHub <noreply@github.com> Wed Feb 12 04:32:52 2020 -0800
tree 96534d89da1aefc65872977c4ac4078993b62a22
parent efd878cdb46d9c7038d93fb36eb1ff7dc5baf9ec

bpo-21016: pydoc and trace use sysconfig (GH-18476)


bpo-21016, bpo-1294959: The pydoc and trace modules now use the
sysconfig module to get the path to the Python standard library, to
support uncommon installation path like /usr/lib64/python3.9/ on
Fedora.

Co-Authored-By: Jan Matějek <jmatejek@suse.com>
(cherry picked from commit 4fac7ed43ebf1771a8fe86fdfe7b9991f3be78cd)

Co-authored-by: Victor Stinner <vstinner@python.org>

Lib/trace.py

diff --git a/Lib/trace.py b/Lib/trace.py
index 62325d3..a447357 100755
--- a/Lib/trace.py
+++ b/Lib/trace.py
@@ -52,6 +52,7 @@
 import linecache
 import os
 import sys
+import sysconfig
 import token
 import tokenize
 import inspect
@@ -676,9 +677,8 @@
     opts = parser.parse_args()
 
     if opts.ignore_dir:
-        rel_path = 'lib', 'python{0.major}.{0.minor}'.format(sys.version_info)
-        _prefix = os.path.join(sys.base_prefix, *rel_path)
-        _exec_prefix = os.path.join(sys.base_exec_prefix, *rel_path)
+        _prefix = sysconfig.get_path("stdlib")
+        _exec_prefix = sysconfig.get_path("platstdlib")
 
     def parse_ignore_dir(s):
         s = os.path.expanduser(os.path.expandvars(s))