[Python-checkins] bpo-33692: pythoninfo detect libedit on Python 2.7 (#7246)

[Victor Stinner]

https://github.com/python/cpython/commit/9994eff17f943fb2c190708b12c96fef9838a425
commit: 9994eff17f943fb2c190708b12c96fef9838a425
branch: 2.7
author: Victor Stinner <vstinner at redhat.com>
committer: GitHub <noreply at github.com>
date: 2018-05-30T23:36:04+02:00
summary:

bpo-33692: pythoninfo detect libedit on Python 2.7 (#7246)

Check which readline implementation is used based on the readline
docstring.

files:
M Lib/test/pythoninfo.py

diff --git a/Lib/test/pythoninfo.py b/Lib/test/pythoninfo.py
index f40ff8d0eba1..92b515803991 100644
--- a/Lib/test/pythoninfo.py
+++ b/Lib/test/pythoninfo.py
@@ -275,6 +275,14 @@ def format_attr(attr, value):
     copy_attributes(info_add, readline, 'readline.%s', attributes,
                     formatter=format_attr)
 
+    if not hasattr(readline, "_READLINE_LIBRARY_VERSION"):
+        # _READLINE_LIBRARY_VERSION has been added to CPython 3.7
+        doc = getattr(readline, '__doc__', '')
+        if 'libedit readline' in doc:
+            info_add('readline.library', 'libedit readline')
+        elif 'GNU readline' in doc:
+            info_add('readline.library', 'GNU readline')
+
 
 def collect_gdb(info_add):
     import subprocess