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Diffstat (limited to 'Lib/importlib/metadata.py')
| -rw-r--r-- | Lib/importlib/metadata.py | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/Lib/importlib/metadata.py b/Lib/importlib/metadata.py index c6c7d31aa5..594986ce23 100644 --- a/Lib/importlib/metadata.py +++ b/Lib/importlib/metadata.py @@ -344,17 +344,26 @@ class Distribution: def make_condition(name): return name and 'extra == "{name}"'.format(name=name) - def parse_condition(section): + def quoted_marker(section): section = section or '' extra, sep, markers = section.partition(':') if extra and markers: - markers = '({markers})'.format(markers=markers) + markers = f'({markers})' conditions = list(filter(None, [markers, make_condition(extra)])) return '; ' + ' and '.join(conditions) if conditions else '' + def url_req_space(req): + """ + PEP 508 requires a space between the url_spec and the quoted_marker. + Ref python/importlib_metadata#357. + """ + # '@' is uniquely indicative of a url_req. + return ' ' * ('@' in req) + for section, deps in sections.items(): for dep in deps: - yield dep + parse_condition(section) + space = url_req_space(dep) + yield dep + space + quoted_marker(section) class DistributionFinder(MetaPathFinder): |