* [Buildroot] [git commit branch/2021.05.x] utils/scanpypi: add setup.py script directory as sys.path[0]
@ 2021-08-05 20:05 Peter Korsgaard
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From: Peter Korsgaard @ 2021-08-05 20:05 UTC (permalink / raw)
To: buildroot
commit: https://git.buildroot.net/buildroot/commit/?id=827fafa7aaa230951296e18e65f06de21df963dd
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2021.05.x
Even though the directory containing a package's setup.py was added to
sys.path, some setup.py implementations rely on the fact that it is placed
in sys.path[0].
An example package is 'cram' which failed to be added with scanpypi:
Traceback (most recent call last):
File "utils/scanpypi", line 756, in <module>
main()
File "utils/scanpypi", line 703, in main
package.load_setup()
File "utils/scanpypi", line 303, in load_setup
setup = imp.load_module('setup', s_file, s_path, s_desc)
File "/usr/lib/python3.8/imp.py", line 234, in load_module
return load_source(name, filename, file)
File "/usr/lib/python3.8/imp.py", line 171, in load_source
module = _load(spec)
File "<frozen importlib._bootstrap>", line 702, in _load
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/tmp/scanpypi-2pzc5wb_/python-cram/cram-0.7/setup.py", line 44, in <module>
long_description=long_description(),
File "/tmp/scanpypi-2pzc5wb_/python-cram/cram-0.7/setup.py", line 20, in long_description
return open(os.path.join(sys.path[0], 'README.rst')).read()
FileNotFoundError: [Errno 2] No such file or directory: '.../buildroot/utils/README.rst'
The corresponding code from cram's setup.py is:
def long_description():
"""Get the long description from the README"""
return open(os.path.join(sys.path[0], 'README.rst')).read()
Indeed, the Python documentation says:
https://docs.python.org/3.8/library/sys.html#sys.path
"...
As initialized upon program startup, the first item of this list,
path[0], is the directory containing the script that was used to invoke
the Python interpreter.
..."
Fix this by inserting explicitly at index 0 instead of appending to
sys.path.
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit ad042904f45201370b886ef5762ff75a93dc8395)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
utils/scanpypi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/utils/scanpypi b/utils/scanpypi
index 8327fc3fc5..fac22d66e8 100755
--- a/utils/scanpypi
+++ b/utils/scanpypi
@@ -297,7 +297,7 @@ class BuildrootPackage():
"""
current_dir = os.getcwd()
os.chdir(self.tmp_extract)
- sys.path.append(self.tmp_extract)
+ sys.path.insert(0,self.tmp_extract)
s_file, s_path, s_desc = imp.find_module('setup', [self.tmp_extract])
setup = imp.load_module('setup', s_file, s_path, s_desc)
if self.metadata_name in self.setup_args:
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