diff options
Diffstat (limited to 'nixpkgs/pkgs/development/interpreters/python/catch_conflicts/catch_conflicts_py2.py')
-rw-r--r-- | nixpkgs/pkgs/development/interpreters/python/catch_conflicts/catch_conflicts_py2.py | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/interpreters/python/catch_conflicts/catch_conflicts_py2.py b/nixpkgs/pkgs/development/interpreters/python/catch_conflicts/catch_conflicts_py2.py new file mode 100644 index 000000000000..bb82900c65a9 --- /dev/null +++ b/nixpkgs/pkgs/development/interpreters/python/catch_conflicts/catch_conflicts_py2.py @@ -0,0 +1,30 @@ +import pkg_resources +import collections +import sys + +do_abort = False +packages = collections.defaultdict(list) + +for f in sys.path: + for req in pkg_resources.find_distributions(f): + if req not in packages[req.project_name]: + # some exceptions inside buildPythonPackage + if req.project_name in ['setuptools', 'pip', 'wheel']: + continue + packages[req.project_name].append(req) + + +for name, duplicates in packages.items(): + if len(duplicates) > 1: + do_abort = True + print("Found duplicated packages in closure for dependency '{}': ".format(name)) + for dup in duplicates: + print(" " + repr(dup)) + +if do_abort: + print("") + print( + 'Package duplicates found in closure, see above. Usually this ' + 'happens if two packages depend on different version ' + 'of the same dependency.') + sys.exit(1) |