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__module__t __doc__R ( ( ( sL /opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/pep517/wrappers.pyR ! s t BackendInvalidc B s e Z d Z d � Z RS( s) Will be raised if the backend is invalid.c C s | | _ | | _ | | _ d S( N( t backend_namet backend_patht message( R R R R ( ( sL /opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/pep517/wrappers.pyR ) s ( R R R R ( ( ( sL /opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/pep517/wrappers.pyR ' s t HookMissingc B s e Z d Z d � Z RS( s Will be raised on missing hooks.c C s# t t | � j | � | | _ d S( N( t superR R t hook_name( R R ( ( sL /opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/pep517/wrappers.pyR 1 s ( R R R R ( ( ( sL /opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/pep517/wrappers.pyR / s t UnsupportedOperationc B s e Z d Z d � Z RS( sD May be raised by build_sdist if the backend indicates that it can't.c C s
| | _ d S( N( R ( R R ( ( sL /opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/pep517/wrappers.pyR 8 s ( R R R R ( ( ( sL /opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/pep517/wrappers.pyR! 6 s c C s? t j j � } | r% | j | � n t | d | d | �d S( s5 The default method of calling the wrapper subprocess.t cwdt envN( t ost environt copyt updateR ( t cmdR" t
extra_environR# ( ( sL /opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/pep517/wrappers.pyt default_subprocess_runner< s c C sE t j j � } | r% | j | � n t | d | d | d t �d S( sD A method of calling the wrapper subprocess while suppressing output.R" R# t stderrN( R$ R% R& R' R R ( R( R" R) R# ( ( sL /opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/pep517/wrappers.pyt quiet_subprocess_runnerE s c C s� t j j | � r! t d � � n t j j | � } t j j t j j | | � � } t j j | � } t j j | � } t j j | | g � | k r� t d � � n | S( s� Normalise and check a backend path.
Ensure that the requested backend path is specified as a relative path,
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se A wrapper around a source directory to be built with a PEP 517 backend.
source_dir : The path to the source directory, containing pyproject.toml.
build_backend : The build backend spec, as per PEP 517, from
pyproject.toml.
backend_path : The backend path, as per PEP 517, from pyproject.toml.
runner : A callable that invokes the wrapper subprocess.
The 'runner', if provided, must expect the following:
cmd : a list of strings representing the command and arguments to
execute, as would be passed to e.g. 'subprocess.check_call'.
cwd : a string representing the working directory that must be
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extra_environ : a dict mapping environment variable names to values
which must be set for the subprocess execution.
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c C s | j d i | d 6� S( sG Identify packages required for building a wheel
Returns a list of dependency specifications, e.g.:
["wheel >= 0.25", "setuptools"]
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subprocess.
t get_requires_for_build_wheelt config_settings( t
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c C s+ | j d i t | � d 6| d 6| d 6� S( sq Prepare a *.dist-info folder with metadata for this project.
Returns the name of the newly created folder.
If the build backend defines a hook with this name, it will be called
in a subprocess. If not, the backend will be asked to build a wheel,
and the dist-info extracted from that (unless _allow_fallback is
False).
t prepare_metadata_for_build_wheelt metadata_directoryRC t _allow_fallback( RD R ( R RF RC RG ( ( sL /opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/pep517/wrappers.pyRE � s
c C sF | d k r t | � } n | j d i t | � d 6| d 6| d 6� S( sv Build a wheel from this project.
Returns the name of the newly created file.
In general, this will call the 'build_wheel' hook in the backend.
However, if that was previously called by
'prepare_metadata_for_build_wheel', and the same metadata_directory is
used, the previously built wheel will be copied to wheel_directory.
t build_wheelt wheel_directoryRC RF N( R: R RD ( R RI RC RF ( ( sL /opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/pep517/wrappers.pyRH � s
c C s | j d i | d 6� S( s< Identify packages required for building a wheel
Returns a list of dependency specifications, e.g.:
["setuptools >= 26"]
This does not include requirements specified in pyproject.toml.
It returns the result of calling the equivalently named hook in a
subprocess.
t get_requires_for_build_sdistRC ( RD ( R RC ( ( sL /opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/pep517/wrappers.pyRJ � s
c C s$ | j d i t | � d 6| d 6� S( s� Build an sdist from this project.
Returns the name of the newly created file.
This calls the 'build_sdist' backend hook in a subprocess.
t build_sdistt sdist_directoryRC ( RD R ( R RL RC ( ( sL /opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/pep517/wrappers.pyRK � s
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Read messages from a pipe and redirect them
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