Let pysetup list exit with a non-zero code when no result is found (#11409).
“pysetup list” or “pysetup list --all” will continue to return 0 if no
distribution is found (it’s not an error), but “pysetup list
some.project” will now exit with 1 if no matching installed distribution
is found. Based on a patch by Kelsey Hightower.
diff --git a/Lib/packaging/run.py b/Lib/packaging/run.py
index 3e720cf..bcc3c21 100644
--- a/Lib/packaging/run.py
+++ b/Lib/packaging/run.py
@@ -358,8 +358,10 @@
dists = get_distributions(use_egg_info=True)
if 'all' in opts or opts['args'] == []:
results = dists
+ listall = True
else:
results = [d for d in dists if d.name.lower() in opts['args']]
+ listall = False
number = 0
for dist in results:
@@ -368,7 +370,11 @@
print()
if number == 0:
- print('Nothing seems to be installed.')
+ if listall:
+ print('Nothing seems to be installed.')
+ else:
+ print('No matching distribution found.')
+ return 1
else:
print('Found %d projects installed.' % number)