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* feat: initialize repodata * feat: port install * fix: relative imports
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,185 @@ | ||
| import asyncio | ||
| import importlib | ||
| from pathlib import Path | ||
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| from packaging.markers import default_environment | ||
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| from . import package_index | ||
| from ._compat import loadPackage, to_js | ||
| from .constants import FAQ_URLS | ||
| from .logging import setup_logging | ||
| from .transaction import Transaction | ||
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| async def install( | ||
| requirements: str | list[str], | ||
| keep_going: bool = False, | ||
| deps: bool = True, | ||
| credentials: str | None = None, | ||
| pre: bool = False, | ||
| index_urls: list[str] | str | None = None, | ||
| *, | ||
| verbose: bool | int = False, | ||
| ) -> None: | ||
| """Install the given package and all of its dependencies. | ||
| If a package is not found in the Pyodide repository it will be loaded from | ||
| PyPI. Micropip can only load pure Python wheels or wasm32/emscripten wheels | ||
| built by Pyodide. | ||
| When used in web browsers, downloads from PyPI will be cached. When run in | ||
| Node.js, packages are currently not cached, and will be re-downloaded each | ||
| time ``micropip.install`` is run. | ||
| Parameters | ||
| ---------- | ||
| requirements : | ||
| A requirement or list of requirements to install. Each requirement is a | ||
| string, which should be either a package name or a wheel URI: | ||
| - If the requirement does not end in ``.whl``, it will be interpreted as | ||
| a package name. A package with this name must either be present | ||
| in the Pyodide lock file or on PyPI. | ||
| - If the requirement ends in ``.whl``, it is a wheel URI. The part of | ||
| the requirement after the last ``/`` must be a valid wheel name in | ||
| compliance with the `PEP 427 naming convention | ||
| <https://www.python.org/dev/peps/pep-0427/#file-format>`_. | ||
| - If a wheel URI starts with ``emfs:``, it will be interpreted as a path | ||
| in the Emscripten file system (Pyodide's file system). E.g., | ||
| ``emfs:../relative/path/wheel.whl`` or ``emfs:/absolute/path/wheel.whl``. | ||
| In this case, only .whl files are supported. | ||
| - If a wheel URI requirement starts with ``http:`` or ``https:`` it will | ||
| be interpreted as a URL. | ||
| - In node, you can access the native file system using a URI that starts | ||
| with ``file:``. In the browser this will not work. | ||
| keep_going : | ||
| This parameter decides the behavior of the micropip when it encounters a | ||
| Python package without a pure Python wheel while doing dependency | ||
| resolution: | ||
| - If ``False``, an error will be raised on first package with a missing | ||
| wheel. | ||
| - If ``True``, the micropip will keep going after the first error, and | ||
| report a list of errors at the end. | ||
| deps : | ||
| If ``True``, install dependencies specified in METADATA file for each | ||
| package. Otherwise do not install dependencies. | ||
| credentials : | ||
| This parameter specifies the value of ``credentials`` when calling the | ||
| `fetch() <https://developer.mozilla.org/en-US/docs/Web/API/fetch>`__ | ||
| function which is used to download the package. | ||
| When not specified, ``fetch()`` is called without ``credentials``. | ||
| pre : | ||
| If ``True``, include pre-release and development versions. By default, | ||
| micropip only finds stable versions. | ||
| index_urls : | ||
| A list of URLs or a single URL to use as the package index when looking | ||
| up packages. If None, *https://pypi.org/pypi/{package_name}/json* is used. | ||
| - The index URL should support the | ||
| `JSON API <https://warehouse.pypa.io/api-reference/json/>`__ . | ||
| - The index URL may contain the placeholder {package_name} which will be | ||
| replaced with the package name when looking up a package. If it does not | ||
| contain the placeholder, the package name will be appended to the URL. | ||
| - If a list of URLs is provided, micropip will try each URL in order until | ||
| it finds a package. If no package is found, an error will be raised. | ||
| verbose : | ||
| Print more information about the process. | ||
| By default, micropip is silent. Setting ``verbose=True`` will print | ||
| similar information as pip. | ||
| """ | ||
| logger = setup_logging(verbose) | ||
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| ctx = default_environment() | ||
| if isinstance(requirements, str): | ||
| requirements = [requirements] | ||
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| fetch_kwargs = dict() | ||
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| if credentials: | ||
| fetch_kwargs["credentials"] = credentials | ||
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| # Note: getsitepackages is not available in a virtual environment... | ||
| # See https://github.com/pypa/virtualenv/issues/228 (issue is closed but | ||
| # problem is not fixed) | ||
| from site import getsitepackages | ||
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| wheel_base = Path(getsitepackages()[0]) | ||
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| if index_urls is None: | ||
| index_urls = package_index.INDEX_URLS[:] | ||
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| transaction = Transaction( | ||
| ctx=ctx, # type: ignore[arg-type] | ||
| ctx_extras=[], | ||
| keep_going=keep_going, | ||
| deps=deps, | ||
| pre=pre, | ||
| fetch_kwargs=fetch_kwargs, | ||
| verbose=verbose, | ||
| index_urls=index_urls, | ||
| ) | ||
| await transaction.gather_requirements(requirements) | ||
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| if transaction.failed: | ||
| failed_requirements = ", ".join([f"'{req}'" for req in transaction.failed]) | ||
| raise ValueError( | ||
| f"Can't find a pure Python 3 wheel for: {failed_requirements}\n" | ||
| f"See: {FAQ_URLS['cant_find_wheel']}\n" | ||
| ) | ||
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| package_names = [pkg.name for pkg in transaction.pyodide_packages] + [ | ||
| pkg.name for pkg in transaction.wheels | ||
| ] | ||
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| if package_names: | ||
| logger.info("Installing collected packages: " + ", ".join(package_names)) | ||
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| wheel_promises = [] | ||
| # Install built-in packages | ||
| pyodide_packages = transaction.pyodide_packages | ||
| if len(pyodide_packages): | ||
| # Note: branch never happens in out-of-browser testing because in | ||
| # that case REPODATA_PACKAGES is empty. | ||
| wheel_promises.append( | ||
| asyncio.ensure_future( | ||
| loadPackage(to_js([name for [name, _, _] in pyodide_packages])) | ||
| ) | ||
| ) | ||
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| # Now install PyPI packages | ||
| for wheel in transaction.wheels: | ||
| # detect whether the wheel metadata is from PyPI or from custom location | ||
| # wheel metadata from PyPI has SHA256 checksum digest. | ||
| wheel_promises.append(wheel.install(wheel_base)) | ||
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| await asyncio.gather(*wheel_promises) | ||
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| packages = [f"{pkg.name}-{pkg.version}" for pkg in transaction.pyodide_packages] + [ | ||
| f"{pkg.name}-{pkg.version}" for pkg in transaction.wheels | ||
| ] | ||
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| if packages: | ||
| logger.info("Successfully installed " + ", ".join(packages)) | ||
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| importlib.invalidate_caches() |
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