U Ha@s~ddlZddlmZddlmZmZmZddlmZddl m Z m Z ddl m Z ddZd d Zed d d ddgZddZdS)N) namedtuple)AnyListOptional)tomli)InvalidRequirement Requirement)InstallationErrorcCst|totdd|DS)Ncss|]}t|tVqdS)N) isinstancestr).0itemr;/tmp/pip-unpacked-wheel-tx790h60/pip/_internal/pyproject.py sz"_is_list_of_str..)r listall)objrrr_is_list_of_str s rcCstj|dS)Nzpyproject.toml)ospathjoin)unpacked_source_directoryrrrmake_pyproject_pathsrBuildSystemDetailsrequiresbackendcheck backend_pathc Cstj|}tj|}|rJt|dd}t|}W5QRX|d}nd}|rp|sp|dk rj|sjtdd}n<|rd|kr|dk r|std|dd}n |dkr|}|dk st |sdS|dkrd d gd d }|dk st d } d|krt| j|dd|d} t | s&t| j|dd| D]B} z t | Wn.t k rht| j|d| dYnXq*|d} |dg} g}| dkrd } d d g}t | | || S)aBLoad the pyproject.toml file. Parameters: use_pep517 - Has the user requested PEP 517 processing? None means the user hasn't explicitly specified. pyproject_toml - Location of the project's pyproject.toml file setup_py - Location of the project's setup.py file req_name - The name of the requirement we're processing (for error reporting) Returns: None if we should use the legacy code path, otherwise a tuple ( requirements from pyproject.toml, name of PEP 517 backend, requirements we should check are installed after setting up the build environment directory paths to import the backend from (backend-path), relative to the project root. ) zutf-8)encodingz build-systemNzIDisabling PEP 517 processing is invalid: project does not have a setup.pyT build-backendzbDisabling PEP 517 processing is invalid: project specifies a build backend of {} in pyproject.tomlzsetuptools>=40.8.0wheelz setuptools.build_meta:__legacy__)rr zO{package} has a pyproject.toml file that does not comply with PEP 518: {reason}rz]it has a 'build-system' table but not 'build-system.requires' which is mandatory in the table)packagereasonz1'build-system.requires' is not a list of strings.z='build-system.requires' contains an invalid requirement: {!r}z backend-path)rrisfileopenrloadgetr formatAssertionErrorrrrr) use_pep517pyproject_tomlsetup_pyreq_name has_pyproject has_setupfpp_toml build_systemerror_templater requirementrrrrrrload_pyproject_tomls               r5)r collectionsrtypingrrr pip._vendorr"pip._vendor.packaging.requirementsrrpip._internal.exceptionsr rrrr5rrrrs