U 9%ek!@sdZddlZddlZddlZddlZddlZddlZddlZddlZdddgZ dddZ Gdddej Z dd dZ Gd d d ejZeed ddZdS)zU lazy_loader =========== Makes it easy to load subpackages and functions on demand. Nattachload attach_stubcs|dkr i}dkrtntdd|DtBfdd}fdd}tjdd rtBD] }||q||tfS) a8Attach lazily loaded submodules, functions, or other attributes. Typically, modules import submodules and attributes as follows:: import mysubmodule import anothersubmodule from .foo import someattr The idea is to replace a package's `__getattr__`, `__dir__`, and `__all__`, such that all imports work exactly the way they would with normal imports, except that the import occurs upon first use. The typical way to call this function, replacing the above imports, is:: __getattr__, __dir__, __all__ = lazy.attach( __name__, ['mysubmodule', 'anothersubmodule'], {'foo': ['someattr']} ) This functionality requires Python 3.7 or higher. Parameters ---------- package_name : str Typically use ``__name__``. submodules : set List of submodules to attach. submod_attrs : dict Dictionary of submodule -> list of attributes / functions. These attributes are imported as they are used. Returns ------- __getattr__, __dir__, __all__ NcSs i|]\}}|D] }||qqSr).0modattrsattrrrS/var/www/html/Darija-Ai-API/env/lib/python3.8/site-packages/lazy_loader/__init__.py Bs zattach..cs|krtd|S|krnd|}t|}t||}||krjtj}||j|<|Stdd|dS)N.zNo z attribute ) importlib import_modulegetattrsysmodules__dict__AttributeError)nameZ submod_pathZsubmodr pkg)attr_to_modules package_name submodulesrr __getattr__Hs     zattach..__getattr__csSNrr)__all__rr __dir__[szattach..__dir__Z EAGER_IMPORT)setitemssortedkeysosenvirongetlist)rrZ submod_attrsrrr r)rrrrr rs'  cs(eZdZfddZfddZZS)DelayedImportErrorModulecs||_tj||dSr)%_DelayedImportErrorModule__frame_datasuper__init__)self frame_dataargskwargs __class__rr r)fsz!DelayedImportErrorModule.__init__csd|dkrt|nJ|j}td|dd|dd|dd|d d d |d  dS) N)r/__file__Z __frame_dataNo module named 'speczF' This error is lazily reported, having originally occured in File filenamez, line linenoz, in functionz ----> r code_context)r(rr'ModuleNotFoundErrorjoinstrip)r*xfdr.rr rjs >z$DelayedImportErrorModule.__getattr__)__name__ __module__ __qualname__r)r __classcell__rrr.r r&es r&FcCsz tj|WStk r YnXd|kr:d}t|ttj|}|dkr|rdt d|dn8z2t d}||j |j |j|jd}t|dWS~Xtj|}|tj|<tj|j}|||S) a,Return a lazily imported proxy for a module. We often see the following pattern:: def myfunc(): import numpy as np np.norm(...) .... Putting the import inside the function prevents, in this case, `numpy`, from being imported at function definition time. That saves time if `myfunc` ends up not being called. This `load` function returns a proxy module that, upon access, imports the actual module. So the idiom equivalent to the above example is:: np = lazy.load("numpy") def myfunc(): np.norm(...) .... The initial import time is fast because the actual import is delayed until the first attribute is requested. The overall import time may decrease as well for users that don't make use of large portions of your library. Warning ------- While lazily loading *sub*packages technically works, it causes the package (that contains the subpackage) to be eagerly loaded even if the package is already lazily loaded. So, you probably shouldn't use subpackages with this `load` feature. Instead you should encourage the package maintainers to use the `lazy_loader.attach` to make their subpackages load lazily. Parameters ---------- fullname : str The full name of the module or submodule to import. For example:: sp = lazy.load('scipy') # import scipy as sp error_on_import : bool Whether to postpone raising import errors until the module is accessed. If set to `True`, import errors are raised as soon as `load` is called. Returns ------- pm : importlib.util._LazyModule Proxy module. Can be used like any regularly imported module. Actual loading of the module occurs upon first attribute request. r zsubpackages can technically be lazily loaded, but it causes the package to be eagerly loaded even if it is already lazily loaded.So, you probably shouldn't use subpackages with this lazy feature.Nr1')r2r3r4r5r6r&)rrKeyErrorwarningswarnRuntimeWarningr util find_specr7inspectstackr3r4r5r6r&module_from_spec LazyLoaderloader exec_module)fullnameZerror_on_importmsgr2parentr+modulerLrrr rws67       c@s(eZdZdZddZejdddZdS) _StubVisitorzAAST visitor to parse a stub file for submodules and submod_attrs.cCst|_i|_dSr)r _submodules _submod_attrs)r*rrr r)sz_StubVisitor.__init__)nodecCs\|jdkrtd|jr@|j|jg}|dd|jDn|jdd|jDdS)NrAz;Only within-module imports are supported (`from .* import`)css|] }|jVqdSrrraliasrrr sz0_StubVisitor.visit_ImportFrom..css|] }|jVqdSrrVrWrrr rYs) level ValueErrorrQrT setdefaultextendnamesrSupdate)r*rUrrrr visit_ImportFroms z_StubVisitor.visit_ImportFromN)r<r=r>__doc__r)ast ImportFromr`rrrr rRsrR)rr3c Cs|dr|ntj|dd}tj|s>td|t|}t| }W5QRXt }| |t ||j |jS)a#Attach lazily loaded submodules, functions from a type stub. This is a variant on ``attach`` that will parse a `.pyi` stub file to infer ``submodules`` and ``submod_attrs``. This allows static type checkers to find imports, while still providing lazy loading at runtime. Parameters ---------- package_name : str Typically use ``__name__``. filename : str Path to `.py` file which has an adjacent `.pyi` file. Typically use ``__file__``. Returns ------- __getattr__, __dir__, __all__ The same output as ``attach``. Raises ------ ValueError If a stub file is not found for `filename`, or if the stubfile is formmated incorrectly (e.g. if it contains an relative import from outside of the module) irz.pyiz+Cannot load imports from non-existent stub )endswithr"pathsplitextexistsr[openrbparsereadrRvisitrrSrT)rr3ZstubfilefZ stub_nodevisitorrrr rs"   )NN)F)rarbr importlib.utilrHr"rtypesrCrr ModuleTyper&r NodeVisitorrRstrrrrrr s  R _