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Start refusing non PEP 518 pyproject.toml files

This commit is contained in:
Pradyun Gedam 2018-06-18 17:05:45 +05:30
parent cbc21a5957
commit 0534aeb891
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1 changed files with 24 additions and 2 deletions
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26
src/pip/_internal/req/req_install.py
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@ -571,8 +571,30 @@ class InstallRequirement(object):
if os.path.isfile(self.pyproject_toml):
with io.open(self.pyproject_toml, encoding="utf-8") as f:
pp_toml = pytoml.load(f)
build_sys = pp_toml.get('build-system', {})
return (build_sys.get('requires', ['setuptools', 'wheel']), True)
build_system = pp_toml.get('build-system', {})
if "requires" not in build_system:
raise InstallationError(
"{} does not comply with PEP 518 as it since it's "
"pyproject.toml file does not have a '[build-system]' "
"table with a 'requires' key."
.format(self)
)
requires = build_system["requires"]
is_list_of_str = isinstance(requires, list) and all(
isinstance(req, str) for req in requires
)
if not is_list_of_str:
raise InstallationError(
"{} does not comply with PEP 518 as it since it's "
"pyproject.toml file contains [build-system].requires "
"which is not a list of strings."
.format(self)
)
return requires, True
return (['setuptools', 'wheel'], False)
def run_egg_info(self):