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Parse hashes from *self.line* and set them on the current object. :returns: Nothing :rtype: None
def parse_hashes(self): # type: () -> None """ Parse hashes from *self.line* and set them on the current object. :returns: Nothing :rtype: None """ line, hashes = self.split_hashes(self.line) self.hashes = hashes self.line = line
Parse extras from *self.line* and set them on the current object :returns: Nothing :rtype: None
def parse_extras(self): # type: () -> None """ Parse extras from *self.line* and set them on the current object :returns: Nothing :rtype: None """ extras = None if "@" in self.line or self.is_vcs or self.is_url: line = "{0}".format(self.line) ...
Sets ``self.name`` if given a **PEP-508** style URL
def get_url(self): # type: () -> STRING_TYPE """Sets ``self.name`` if given a **PEP-508** style URL""" line = self.line try: parsed = URI.parse(line) line = parsed.to_string(escape_password=False, direct=False, strip_ref=True) except ValueError: ...
Generates a 3-tuple of the requisite *name*, *extras* and *url* to generate a :class:`~packaging.requirements.Requirement` out of. :return: A Tuple of an optional name, a Tuple of extras, and an optional URL. :rtype: Tuple[Optional[S], Tuple[Optional[S], ...], Optional[S]]
def requirement_info(self): # type: () -> Tuple[Optional[S], Tuple[Optional[S], ...], Optional[S]] """ Generates a 3-tuple of the requisite *name*, *extras* and *url* to generate a :class:`~packaging.requirements.Requirement` out of. :return: A Tuple of an optional name, a Tuple...
This is a safeguard against decoy requirements when a user installs a package whose name coincides with the name of a folder in the cwd, e.g. install *alembic* when there is a folder called *alembic* in the working directory. In this case we first need to check that the given requirement is a v...
def line_is_installable(self): # type: () -> bool """ This is a safeguard against decoy requirements when a user installs a package whose name coincides with the name of a folder in the cwd, e.g. install *alembic* when there is a folder called *alembic* in the working directory. ...
This implements a substitute for the forkpty system call. This should be more portable than the pty.fork() function. Specifically, this should work on Solaris. Modified 10.06.05 by Geoff Marshall: Implemented __fork_pty() method to resolve the issue with Python's pty.fork() not supporting Solaris, ...
def fork_pty(): '''This implements a substitute for the forkpty system call. This should be more portable than the pty.fork() function. Specifically, this should work on Solaris. Modified 10.06.05 by Geoff Marshall: Implemented __fork_pty() method to resolve the issue with Python's pty.fork() not s...
This makes the pseudo-terminal the controlling tty. This should be more portable than the pty.fork() function. Specifically, this should work on Solaris.
def pty_make_controlling_tty(tty_fd): '''This makes the pseudo-terminal the controlling tty. This should be more portable than the pty.fork() function. Specifically, this should work on Solaris. ''' child_name = os.ttyname(tty_fd) # Disconnect from controlling tty, if any. Raises OSError of ENXIO...
Wraps a function so that it swallows exceptions.
def safecall(func): """Wraps a function so that it swallows exceptions.""" def wrapper(*args, **kwargs): try: return func(*args, **kwargs) except Exception: pass return wrapper
Converts a value into a valid string.
def make_str(value): """Converts a value into a valid string.""" if isinstance(value, bytes): try: return value.decode(get_filesystem_encoding()) except UnicodeError: return value.decode('utf-8', 'replace') return text_type(value)
Return a condensed version of help string.
def make_default_short_help(help, max_length=45): """Return a condensed version of help string.""" words = help.split() total_length = 0 result = [] done = False for word in words: if word[-1:] == '.': done = True new_length = result and 1 + len(word) or len(word) ...
Returns a system stream for byte processing. This essentially returns the stream from the sys module with the given name but it solves some compatibility issues between different Python versions. Primarily this function is necessary for getting binary streams on Python 3. :param name: the name of ...
def get_binary_stream(name): """Returns a system stream for byte processing. This essentially returns the stream from the sys module with the given name but it solves some compatibility issues between different Python versions. Primarily this function is necessary for getting binary streams on Pyth...
Returns a system stream for text processing. This usually returns a wrapped stream around a binary stream returned from :func:`get_binary_stream` but it also can take shortcuts on Python 3 for already correctly configured streams. :param name: the name of the stream to open. Valid names are ``'stdin'...
def get_text_stream(name, encoding=None, errors='strict'): """Returns a system stream for text processing. This usually returns a wrapped stream around a binary stream returned from :func:`get_binary_stream` but it also can take shortcuts on Python 3 for already correctly configured streams. :para...
This is similar to how the :class:`File` works but for manual usage. Files are opened non lazy by default. This can open regular files as well as stdin/stdout if ``'-'`` is passed. If stdin/stdout is returned the stream is wrapped so that the context manager will not close the stream accidentally. T...
def open_file(filename, mode='r', encoding=None, errors='strict', lazy=False, atomic=False): """This is similar to how the :class:`File` works but for manual usage. Files are opened non lazy by default. This can open regular files as well as stdin/stdout if ``'-'`` is passed. If stdin/s...
Formats a filename for user display. The main purpose of this function is to ensure that the filename can be displayed at all. This will decode the filename to unicode if necessary in a way that it will not fail. Optionally, it can shorten the filename to not include the full path to the filename. ...
def format_filename(filename, shorten=False): """Formats a filename for user display. The main purpose of this function is to ensure that the filename can be displayed at all. This will decode the filename to unicode if necessary in a way that it will not fail. Optionally, it can shorten the filename...
r"""Returns the config folder for the application. The default behavior is to return whatever is most appropriate for the operating system. To give you an idea, for an app called ``"Foo Bar"``, something like the following folders could be returned: Mac OS X: ``~/Library/Application Support/Foo...
def get_app_dir(app_name, roaming=True, force_posix=False): r"""Returns the config folder for the application. The default behavior is to return whatever is most appropriate for the operating system. To give you an idea, for an app called ``"Foo Bar"``, something like the following folders could be re...
Opens the file if it's not yet open. This call might fail with a :exc:`FileError`. Not handling this error will produce an error that Click shows.
def open(self): """Opens the file if it's not yet open. This call might fail with a :exc:`FileError`. Not handling this error will produce an error that Click shows. """ if self._f is not None: return self._f try: rv, self.should_close = open_str...
Version of shlex.split that silently accept incomplete strings. Parameters ---------- line : str The string to split Returns ------- [str] The line split in separated arguments
def split_args(line): """Version of shlex.split that silently accept incomplete strings. Parameters ---------- line : str The string to split Returns ------- [str] The line split in separated arguments """ lex = shlex.shlex(line, posix=True) lex.whitespace_split...
Prompts for confirmation (yes/no question). If the user aborts the input by sending a interrupt signal this function will catch it and raise a :exc:`Abort` exception. .. versionadded:: 4.0 Added the `err` parameter. :param text: the question to ask. :param default: the default for the prom...
def confirm(text, default=False, abort=False, prompt_suffix=': ', show_default=True, err=False): """Prompts for confirmation (yes/no question). If the user aborts the input by sending a interrupt signal this function will catch it and raise a :exc:`Abort` exception. .. versionadded:: 4.0 ...
This function takes a text and shows it via an environment specific pager on stdout. .. versionchanged:: 3.0 Added the `color` flag. :param text_or_generator: the text to page, or alternatively, a generator emitting the text to page. :param color: controls if the p...
def echo_via_pager(text_or_generator, color=None): """This function takes a text and shows it via an environment specific pager on stdout. .. versionchanged:: 3.0 Added the `color` flag. :param text_or_generator: the text to page, or alternatively, a generator emit...
Clears the terminal screen. This will have the effect of clearing the whole visible space of the terminal and moving the cursor to the top left. This does not do anything if not connected to a terminal. .. versionadded:: 2.0
def clear(): """Clears the terminal screen. This will have the effect of clearing the whole visible space of the terminal and moving the cursor to the top left. This does not do anything if not connected to a terminal. .. versionadded:: 2.0 """ if not isatty(sys.stdout): return # ...
r"""Edits the given text in the defined editor. If an editor is given (should be the full path to the executable but the regular operating system search path is used for finding the executable) it overrides the detected editor. Optionally, some environment variables can be used. If the editor is clos...
def edit(text=None, editor=None, env=None, require_save=True, extension='.txt', filename=None): r"""Edits the given text in the defined editor. If an editor is given (should be the full path to the executable but the regular operating system search path is used for finding the executable) it overr...
This function launches the given URL (or filename) in the default viewer application for this file type. If this is an executable, it might launch the executable in a new session. The return value is the exit code of the launched application. Usually, ``0`` indicates success. Examples:: ...
def launch(url, wait=False, locate=False): """This function launches the given URL (or filename) in the default viewer application for this file type. If this is an executable, it might launch the executable in a new session. The return value is the exit code of the launched application. Usually, ``0...
Fetches a single character from the terminal and returns it. This will always return a unicode character and under certain rare circumstances this might return more than one character. The situations which more than one character is returned is when for whatever reason multiple characters end up in th...
def getchar(echo=False): """Fetches a single character from the terminal and returns it. This will always return a unicode character and under certain rare circumstances this might return more than one character. The situations which more than one character is returned is when for whatever reason ...
This command stops execution and waits for the user to press any key to continue. This is similar to the Windows batch "pause" command. If the program is not run through a terminal, this command will instead do nothing. .. versionadded:: 2.0 .. versionadded:: 4.0 Added the `err` parameter...
def pause(info='Press any key to continue ...', err=False): """This command stops execution and waits for the user to press any key to continue. This is similar to the Windows batch "pause" command. If the program is not run through a terminal, this command will instead do nothing. .. versionadde...
A validator that makes an attribute optional. An optional attribute is one which can be set to ``None`` in addition to satisfying the requirements of the sub-validator. :param validator: A validator (or a list of validators) that is used for non-``None`` values. :type validator: callable or :c...
def optional(validator): """ A validator that makes an attribute optional. An optional attribute is one which can be set to ``None`` in addition to satisfying the requirements of the sub-validator. :param validator: A validator (or a list of validators) that is used for non-``None`` values...
Return a shallow copy of this graph.
def copy(self): """Return a shallow copy of this graph. """ other = DirectedGraph() other._vertices = set(self._vertices) other._forwards = {k: set(v) for k, v in self._forwards.items()} other._backwards = {k: set(v) for k, v in self._backwards.items()} return oth...
Add a new vertex to the graph.
def add(self, key): """Add a new vertex to the graph. """ if key in self._vertices: raise ValueError('vertex exists') self._vertices.add(key) self._forwards[key] = set() self._backwards[key] = set()
Remove a vertex from the graph, disconnecting all edges from/to it.
def remove(self, key): """Remove a vertex from the graph, disconnecting all edges from/to it. """ self._vertices.remove(key) for f in self._forwards.pop(key): self._backwards[f].remove(key) for t in self._backwards.pop(key): self._forwards[t].remove(key)
Connect two existing vertices. Nothing happens if the vertices are already connected.
def connect(self, f, t): """Connect two existing vertices. Nothing happens if the vertices are already connected. """ if t not in self._vertices: raise KeyError(t) self._forwards[f].add(t) self._backwards[t].add(f)
Compare two digests of equal length in constant time. The digests must be of type str/bytes. Returns True if the digests match, and False otherwise.
def _const_compare_digest_backport(a, b): """ Compare two digests of equal length in constant time. The digests must be of type str/bytes. Returns True if the digests match, and False otherwise. """ result = abs(len(a) - len(b)) for l, r in zip(bytearray(a), bytearray(b)): result |=...
Checks if given fingerprint matches the supplied certificate. :param cert: Certificate as bytes object. :param fingerprint: Fingerprint as string of hexdigits, can be interspersed by colons.
def assert_fingerprint(cert, fingerprint): """ Checks if given fingerprint matches the supplied certificate. :param cert: Certificate as bytes object. :param fingerprint: Fingerprint as string of hexdigits, can be interspersed by colons. """ fingerprint = fingerprint.replace(':...
Resolves the argument to a numeric constant, which can be passed to the wrap_socket function/method from the ssl module. Defaults to :data:`ssl.CERT_NONE`. If given a string it is assumed to be the name of the constant in the :mod:`ssl` module or its abbreviation. (So you can specify `REQUIRED` inst...
def resolve_cert_reqs(candidate): """ Resolves the argument to a numeric constant, which can be passed to the wrap_socket function/method from the ssl module. Defaults to :data:`ssl.CERT_NONE`. If given a string it is assumed to be the name of the constant in the :mod:`ssl` module or its abbrevi...
like resolve_cert_reqs
def resolve_ssl_version(candidate): """ like resolve_cert_reqs """ if candidate is None: return PROTOCOL_SSLv23 if isinstance(candidate, str): res = getattr(ssl, candidate, None) if res is None: res = getattr(ssl, 'PROTOCOL_' + candidate) return res ...
All arguments except for server_hostname, ssl_context, and ca_cert_dir have the same meaning as they do when using :func:`ssl.wrap_socket`. :param server_hostname: When SNI is supported, the expected hostname of the certificate :param ssl_context: A pre-made :class:`SSLContext` object. If n...
def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None, ca_certs=None, server_hostname=None, ssl_version=None, ciphers=None, ssl_context=None, ca_cert_dir=None): """ All arguments except for server_hostname, ssl_context, and ca_cert_dir ...
Detects whether the hostname given is an IP address. :param str hostname: Hostname to examine. :return: True if the hostname is an IP address, False otherwise.
def is_ipaddress(hostname): """Detects whether the hostname given is an IP address. :param str hostname: Hostname to examine. :return: True if the hostname is an IP address, False otherwise. """ if six.PY3 and isinstance(hostname, bytes): # IDN A-label bytes are ASCII compatible. ho...
Get the value of Retry-After in seconds.
def get_retry_after(self, response): """ Get the value of Retry-After in seconds. """ retry_after = response.getheader("Retry-After") if retry_after is None: return None return self.parse_retry_after(retry_after)
Sleep between retry attempts. This method will respect a server's ``Retry-After`` response header and sleep the duration of the time requested. If that is not present, it will use an exponential backoff. By default, the backoff factor is 0 and this method will return immediately.
def sleep(self, response=None): """ Sleep between retry attempts. This method will respect a server's ``Retry-After`` response header and sleep the duration of the time requested. If that is not present, it will use an exponential backoff. By default, the backoff factor is 0 and ...
Checks if a given HTTP method should be retried upon, depending if it is included on the method whitelist.
def _is_method_retryable(self, method): """ Checks if a given HTTP method should be retried upon, depending if it is included on the method whitelist. """ if self.method_whitelist and method.upper() not in self.method_whitelist: return False return True
Is this method/status code retryable? (Based on whitelists and control variables such as the number of total retries to allow, whether to respect the Retry-After header, whether this header is present, and whether the returned status code is on the list of status codes to be retried upon...
def is_retry(self, method, status_code, has_retry_after=False): """ Is this method/status code retryable? (Based on whitelists and control variables such as the number of total retries to allow, whether to respect the Retry-After header, whether this header is present, and whether the re...
Are we out of retries?
def is_exhausted(self): """ Are we out of retries? """ retry_counts = (self.total, self.connect, self.read, self.redirect, self.status) retry_counts = list(filter(None, retry_counts)) if not retry_counts: return False return min(retry_counts) < 0
Return a new Retry object with incremented retry counters. :param response: A response object, or None, if the server did not return a response. :type response: :class:`~urllib3.response.HTTPResponse` :param Exception error: An error encountered during the request, or No...
def increment(self, method=None, url=None, response=None, error=None, _pool=None, _stacktrace=None): """ Return a new Retry object with incremented retry counters. :param response: A response object, or None, if the server did not return a response. :type response:...
Build a response by making a request or using the cache. This will end up calling send and returning a potentially cached response
def build_response( self, request, response, from_cache=False, cacheable_methods=None ): """ Build a response by making a request or using the cache. This will end up calling send and returning a potentially cached response """ cacheable = cacheable_methods o...
Try to look up the process tree via Linux's /proc
def get_process_mapping(): """Try to look up the process tree via Linux's /proc """ with open('/proc/{0}/stat'.format(os.getpid())) as f: self_tty = f.read().split()[STAT_TTY] processes = {} for pid in os.listdir('/proc'): if not pid.isdigit(): continue try: ...
Return (hash, length) for path using hashlib.sha256()
def rehash(path, blocksize=1 << 20): # type: (str, int) -> Tuple[str, str] """Return (hash, length) for path using hashlib.sha256()""" h = hashlib.sha256() length = 0 with open(path, 'rb') as f: for block in read_chunks(f, size=blocksize): length += len(block) h.updat...
Replace the Python tag in a wheel file name with a new value.
def replace_python_tag(wheelname, new_tag): # type: (str, str) -> str """Replace the Python tag in a wheel file name with a new value. """ parts = wheelname.split('-') parts[-3] = new_tag return '-'.join(parts)
Determine if any scripts are not on PATH and format a warning. Returns a warning message if one or more scripts are not on PATH, otherwise None.
def message_about_scripts_not_on_PATH(scripts): # type: (Sequence[str]) -> Optional[str] """Determine if any scripts are not on PATH and format a warning. Returns a warning message if one or more scripts are not on PATH, otherwise None. """ if not scripts: return None # Group scrip...
Return the given rows of a RECORD file in sorted order. Each row is a 3-tuple (path, hash, size) and corresponds to a record of a RECORD file (see PEP 376 and PEP 427 for details). For the rows passed to this function, the size can be an integer as an int or string, or the empty string.
def sorted_outrows(outrows): # type: (Iterable[InstalledCSVRow]) -> List[InstalledCSVRow] """ Return the given rows of a RECORD file in sorted order. Each row is a 3-tuple (path, hash, size) and corresponds to a record of a RECORD file (see PEP 376 and PEP 427 for details). For the rows passed...
:param installed: A map from archive RECORD path to installation RECORD path.
def get_csv_rows_for_installed( old_csv_rows, # type: Iterable[List[str]] installed, # type: Dict[str, str] changed, # type: set generated, # type: List[str] lib_dir, # type: str ): # type: (...) -> List[InstalledCSVRow] """ :param installed: A map from archive RECORD path to instal...
Install a wheel
def move_wheel_files( name, # type: str req, # type: Requirement wheeldir, # type: str user=False, # type: bool home=None, # type: Optional[str] root=None, # type: Optional[str] pycompile=True, # type: bool scheme=None, # type: Optional[Mapping[str, str]] isolated=False, # t...
Return the Wheel-Version of an extracted wheel, if possible. Otherwise, return None if we couldn't parse / extract it.
def wheel_version(source_dir): # type: (Optional[str]) -> Optional[Tuple[int, ...]] """ Return the Wheel-Version of an extracted wheel, if possible. Otherwise, return None if we couldn't parse / extract it. """ try: dist = [d for d in pkg_resources.find_on_path(None, source_dir)][0] ...
Determine whether the string looks like an egg_info. :param s: The string to parse. E.g. foo-2.1
def _contains_egg_info( s, _egg_info_re=re.compile(r'([a-z0-9_.]+)-([a-z0-9_.!+-]+)', re.I)): """Determine whether the string looks like an egg_info. :param s: The string to parse. E.g. foo-2.1 """ return bool(_egg_info_re.search(s))
Return whether to build an InstallRequirement object using the ephemeral cache. :param cache_available: whether a cache directory is available for the autobuilding=True case. :return: True or False to build the requirement with ephem_cache=True or False, respectively; or None not to build ...
def should_use_ephemeral_cache( req, # type: InstallRequirement format_control, # type: FormatControl autobuilding, # type: bool cache_available # type: bool ): # type: (...) -> Optional[bool] """ Return whether to build an InstallRequirement object using the ephemeral cache. :p...
Format command information for logging.
def format_command( command_args, # type: List[str] command_output, # type: str ): # type: (...) -> str """ Format command information for logging. """ text = 'Command arguments: {}\n'.format(command_args) if not command_output: text += 'Command output: None' elif logger.g...
Return the path to the wheel in the temporary build directory.
def get_legacy_build_wheel_path( names, # type: List[str] temp_dir, # type: str req, # type: InstallRequirement command_args, # type: List[str] command_output, # type: str ): # type: (...) -> Optional[str] """ Return the path to the wheel in the temporary build directory. """ ...
Return the lowest index that one of the wheel's file_tag combinations achieves in the supported_tags list e.g. if there are 8 supported tags, and one of the file tags is first in the list, then return 0. Returns None is the wheel is not supported.
def support_index_min(self, tags=None): # type: (Optional[List[Pep425Tag]]) -> Optional[int] """ Return the lowest index that one of the wheel's file_tag combinations achieves in the supported_tags list e.g. if there are 8 supported tags, and one of the file tags is first in the ...
Is this wheel supported on this system?
def supported(self, tags=None): # type: (Optional[List[Pep425Tag]]) -> bool """Is this wheel supported on this system?""" if tags is None: # for mock tags = pep425tags.get_supported() return bool(set(tags).intersection(self.file_tags))
Build one wheel. :return: The filename of the built wheel, or None if the build failed.
def _build_one(self, req, output_dir, python_tag=None): """Build one wheel. :return: The filename of the built wheel, or None if the build failed. """ # Install build deps into temporary directory (PEP 518) with req.build_env: return self._build_one_inside_env(req, o...
Build one InstallRequirement using the PEP 517 build process. Returns path to wheel if successfully built. Otherwise, returns None.
def _build_one_pep517(self, req, tempd, python_tag=None): """Build one InstallRequirement using the PEP 517 build process. Returns path to wheel if successfully built. Otherwise, returns None. """ assert req.metadata_directory is not None try: req.spin_message = 'Bui...
Build one InstallRequirement using the "legacy" build process. Returns path to wheel if successfully built. Otherwise, returns None.
def _build_one_legacy(self, req, tempd, python_tag=None): """Build one InstallRequirement using the "legacy" build process. Returns path to wheel if successfully built. Otherwise, returns None. """ base_args = self._base_setup_args(req) spin_message = 'Building wheel for %s (se...
Build wheels. :param unpack: If True, replace the sdist we built from with the newly built wheel, in preparation for installation. :return: True if all the wheels built correctly.
def build( self, requirements, # type: Iterable[InstallRequirement] session, # type: PipSession autobuilding=False # type: bool ): # type: (...) -> List[InstallRequirement] """Build wheels. :param unpack: If True, replace the sdist we built from with the ...
Get the distutils command for interacting with PyPI configurations. :return: the command.
def _get_pypirc_command(self): """ Get the distutils command for interacting with PyPI configurations. :return: the command. """ from distutils.core import Distribution from distutils.config import PyPIRCCommand d = Distribution() return PyPIRCCommand(d)
Read the PyPI access configuration as supported by distutils, getting PyPI to do the actual work. This populates ``username``, ``password``, ``realm`` and ``url`` attributes from the configuration.
def read_configuration(self): """ Read the PyPI access configuration as supported by distutils, getting PyPI to do the actual work. This populates ``username``, ``password``, ``realm`` and ``url`` attributes from the configuration. """ # get distutils to do the work ...
Save the PyPI access configuration. You must have set ``username`` and ``password`` attributes before calling this method. Again, distutils is used to do the actual work.
def save_configuration(self): """ Save the PyPI access configuration. You must have set ``username`` and ``password`` attributes before calling this method. Again, distutils is used to do the actual work. """ self.check_credentials() # get distutils to do the wor...
Check that ``username`` and ``password`` have been set, and raise an exception if not.
def check_credentials(self): """ Check that ``username`` and ``password`` have been set, and raise an exception if not. """ if self.username is None or self.password is None: raise DistlibException('username and password must be set') pm = HTTPPasswordMgr() ...
Register a distribution on PyPI, using the provided metadata. :param metadata: A :class:`Metadata` instance defining at least a name and version number for the distribution to be registered. :return: The HTTP response received from PyPI upon submission ...
def register(self, metadata): """ Register a distribution on PyPI, using the provided metadata. :param metadata: A :class:`Metadata` instance defining at least a name and version number for the distribution to be registered. :return: The...
Thread runner for reading lines of from a subprocess into a buffer. :param name: The logical name of the stream (used for logging only). :param stream: The stream to read from. This will typically a pipe connected to the output stream of a subprocess. :param outbuf: The l...
def _reader(self, name, stream, outbuf): """ Thread runner for reading lines of from a subprocess into a buffer. :param name: The logical name of the stream (used for logging only). :param stream: The stream to read from. This will typically a pipe connected to th...
Return a suitable command for signing a file. :param filename: The pathname to the file to be signed. :param signer: The identifier of the signer of the file. :param sign_password: The passphrase for the signer's private key used for signing. :param keystor...
def get_sign_command(self, filename, signer, sign_password, keystore=None): """ Return a suitable command for signing a file. :param filename: The pathname to the file to be signed. :param signer: The identifier of the signer of the file. :param sign_pas...
Run a command in a child process , passing it any input data specified. :param cmd: The command to run. :param input_data: If specified, this must be a byte string containing data to be sent to the child process. :return: A tuple consisting of the subprocess' exit cod...
def run_command(self, cmd, input_data=None): """ Run a command in a child process , passing it any input data specified. :param cmd: The command to run. :param input_data: If specified, this must be a byte string containing data to be sent to the child process...
Sign a file. :param filename: The pathname to the file to be signed. :param signer: The identifier of the signer of the file. :param sign_password: The passphrase for the signer's private key used for signing. :param keystore: The path to a directory which ...
def sign_file(self, filename, signer, sign_password, keystore=None): """ Sign a file. :param filename: The pathname to the file to be signed. :param signer: The identifier of the signer of the file. :param sign_password: The passphrase for the signer's ...
Upload documentation to the index. :param metadata: A :class:`Metadata` instance defining at least a name and version number for the documentation to be uploaded. :param doc_dir: The pathname of the directory which contains the d...
def upload_documentation(self, metadata, doc_dir): """ Upload documentation to the index. :param metadata: A :class:`Metadata` instance defining at least a name and version number for the documentation to be uploaded. :param doc_dir: The...
Return a suitable command for verifying a file. :param signature_filename: The pathname to the file containing the signature. :param data_filename: The pathname to the file containing the signed data. :param keystore: The path to ...
def get_verify_command(self, signature_filename, data_filename, keystore=None): """ Return a suitable command for verifying a file. :param signature_filename: The pathname to the file containing the signature. :param data_fil...
Verify a signature for a file. :param signature_filename: The pathname to the file containing the signature. :param data_filename: The pathname to the file containing the signed data. :param keystore: The path to a directory which...
def verify_signature(self, signature_filename, data_filename, keystore=None): """ Verify a signature for a file. :param signature_filename: The pathname to the file containing the signature. :param data_filename: The pathname t...
This is a convenience method for downloading a file from an URL. Normally, this will be a file from the index, though currently no check is made for this (i.e. a file can be downloaded from anywhere). The method is just like the :func:`urlretrieve` function in the standard libra...
def download_file(self, url, destfile, digest=None, reporthook=None): """ This is a convenience method for downloading a file from an URL. Normally, this will be a file from the index, though currently no check is made for this (i.e. a file can be downloaded from anywhere). ...
Send a standard library :class:`Request` to PyPI and return its response. :param req: The request to send. :return: The HTTP response from PyPI (a standard library HTTPResponse).
def send_request(self, req): """ Send a standard library :class:`Request` to PyPI and return its response. :param req: The request to send. :return: The HTTP response from PyPI (a standard library HTTPResponse). """ handlers = [] if self.password_handler:...
Encode fields and files for posting to an HTTP server. :param fields: The fields to send as a list of (fieldname, value) tuples. :param files: The files to send as a list of (fieldname, filename, file_bytes) tuple.
def encode_request(self, fields, files): """ Encode fields and files for posting to an HTTP server. :param fields: The fields to send as a list of (fieldname, value) tuples. :param files: The files to send as a list of (fieldname, filename, f...
Do the completion for bash Parameters ---------- cli : click.Command The main click Command of the program prog_name : str The program name on the command line Returns ------- bool True if the completion was successful, False otherwise
def do_bash_complete(cli, prog_name): """Do the completion for bash Parameters ---------- cli : click.Command The main click Command of the program prog_name : str The program name on the command line Returns ------- bool True if the completion was successful, F...
Do the fish completion Parameters ---------- cli : click.Command The main click Command of the program prog_name : str The program name on the command line Returns ------- bool True if the completion was successful, False otherwise
def do_fish_complete(cli, prog_name): """Do the fish completion Parameters ---------- cli : click.Command The main click Command of the program prog_name : str The program name on the command line Returns ------- bool True if the completion was successful, False...
Do the powershell completion Parameters ---------- cli : click.Command The main click Command of the program prog_name : str The program name on the command line Returns ------- bool True if the completion was successful, False otherwise
def do_powershell_complete(cli, prog_name): """Do the powershell completion Parameters ---------- cli : click.Command The main click Command of the program prog_name : str The program name on the command line Returns ------- bool True if the completion was succe...
Returns the completion code to be evaluated by the shell Parameters ---------- shell : Shell The shell type (Default value = None) prog_name : str The program name on the command line (Default value = None) env_name : str The environment variable used to control the completi...
def get_code(shell=None, prog_name=None, env_name=None, extra_env=None): """Returns the completion code to be evaluated by the shell Parameters ---------- shell : Shell The shell type (Default value = None) prog_name : str The program name on the command line (Default value = None) ...
Install the completion Parameters ---------- shell : Shell The shell type targeted. It will be guessed with get_auto_shell() if the value is None (Default value = None) prog_name : str The program name on the command line. It will be automatically computed if the value is None (...
def install(shell=None, prog_name=None, env_name=None, path=None, append=None, extra_env=None): """Install the completion Parameters ---------- shell : Shell The shell type targeted. It will be guessed with get_auto_shell() if the value is None (Default value = None) prog_name : str ...
Get a TreeBuilder class for various types of trees with built-in support :arg treeType: the name of the tree type required (case-insensitive). Supported values are: * "dom" - A generic builder for DOM implementations, defaulting to a xml.dom.minidom based implementation. * "etree...
def getTreeBuilder(treeType, implementation=None, **kwargs): """Get a TreeBuilder class for various types of trees with built-in support :arg treeType: the name of the tree type required (case-insensitive). Supported values are: * "dom" - A generic builder for DOM implementations, defaulting t...
Our embarrassingly-simple replacement for mimetools.choose_boundary.
def choose_boundary(): """ Our embarrassingly-simple replacement for mimetools.choose_boundary. """ boundary = binascii.hexlify(os.urandom(16)) if six.PY3: boundary = boundary.decode('ascii') return boundary
Iterate over fields. Supports list of (k, v) tuples and dicts, and lists of :class:`~urllib3.fields.RequestField`.
def iter_field_objects(fields): """ Iterate over fields. Supports list of (k, v) tuples and dicts, and lists of :class:`~urllib3.fields.RequestField`. """ if isinstance(fields, dict): i = six.iteritems(fields) else: i = iter(fields) for field in i: if isinstanc...
.. deprecated:: 1.6 Iterate over fields. The addition of :class:`~urllib3.fields.RequestField` makes this function obsolete. Instead, use :func:`iter_field_objects`, which returns :class:`~urllib3.fields.RequestField` objects. Supports list of (k, v) tuples and dicts.
def iter_fields(fields): """ .. deprecated:: 1.6 Iterate over fields. The addition of :class:`~urllib3.fields.RequestField` makes this function obsolete. Instead, use :func:`iter_field_objects`, which returns :class:`~urllib3.fields.RequestField` objects. Supports list of (k, v) tuples an...
Encode a dictionary of ``fields`` using the multipart/form-data MIME format. :param fields: Dictionary of fields or list of (key, :class:`~urllib3.fields.RequestField`). :param boundary: If not specified, then a random boundary will be generated using :func:`urllib3.filepost.choose_bou...
def encode_multipart_formdata(fields, boundary=None): """ Encode a dictionary of ``fields`` using the multipart/form-data MIME format. :param fields: Dictionary of fields or list of (key, :class:`~urllib3.fields.RequestField`). :param boundary: If not specified, then a random boundary ...
Return a resource finder for a package. :param package: The name of the package. :return: A :class:`ResourceFinder` instance for the package.
def finder(package): """ Return a resource finder for a package. :param package: The name of the package. :return: A :class:`ResourceFinder` instance for the package. """ if package in _finder_cache: result = _finder_cache[package] else: if package not in sys.modules: ...
Return a resource finder for a path, which should represent a container. :param path: The path. :return: A :class:`ResourceFinder` instance for the path.
def finder_for_path(path): """ Return a resource finder for a path, which should represent a container. :param path: The path. :return: A :class:`ResourceFinder` instance for the path. """ result = None # calls any path hooks, gets importer into cache pkgutil.get_importer(path) load...
Get a resource into the cache, :param resource: A :class:`Resource` instance. :return: The pathname of the resource in the cache.
def get(self, resource): """ Get a resource into the cache, :param resource: A :class:`Resource` instance. :return: The pathname of the resource in the cache. """ prefix, path = resource.finder.get_cache_info(resource) if prefix is None: result = path...
Call SAX-like content handler based on treewalker walker :arg walker: the treewalker to use to walk the tree to convert it :arg handler: SAX handler to use
def to_sax(walker, handler): """Call SAX-like content handler based on treewalker walker :arg walker: the treewalker to use to walk the tree to convert it :arg handler: SAX handler to use """ handler.startDocument() for prefix, namespace in prefix_mapping.items(): handler.startPrefixM...
Decorator function that instantiates the Retrying object @param *dargs: positional arguments passed to Retrying object @param **dkw: keyword arguments passed to the Retrying object
def retry(*dargs, **dkw): """ Decorator function that instantiates the Retrying object @param *dargs: positional arguments passed to Retrying object @param **dkw: keyword arguments passed to the Retrying object """ # support both @retry and @retry() as valid syntax if len(dargs) == 1 and cal...
Sleep a random amount of time between wait_random_min and wait_random_max
def random_sleep(self, previous_attempt_number, delay_since_first_attempt_ms): """Sleep a random amount of time between wait_random_min and wait_random_max""" return random.randint(self._wait_random_min, self._wait_random_max)
Sleep an incremental amount of time after each attempt, starting at wait_incrementing_start and incrementing by wait_incrementing_increment
def incrementing_sleep(self, previous_attempt_number, delay_since_first_attempt_ms): """ Sleep an incremental amount of time after each attempt, starting at wait_incrementing_start and incrementing by wait_incrementing_increment """ result = self._wait_incrementing_start + (self....
Return the return value of this Attempt instance or raise an Exception. If wrap_exception is true, this Attempt is wrapped inside of a RetryError before being raised.
def get(self, wrap_exception=False): """ Return the return value of this Attempt instance or raise an Exception. If wrap_exception is true, this Attempt is wrapped inside of a RetryError before being raised. """ if self.has_exception: if wrap_exception: ...
A range that can't generate ranges with a length of more than MAX_RANGE items.
def safe_range(*args): """A range that can't generate ranges with a length of more than MAX_RANGE items. """ rng = range(*args) if len(rng) > MAX_RANGE: raise OverflowError('range too big, maximum size for range is %d' % MAX_RANGE) return rng
Test if the attribute given is an internal python attribute. For example this function returns `True` for the `func_code` attribute of python objects. This is useful if the environment method :meth:`~SandboxedEnvironment.is_safe_attribute` is overridden. >>> from jinja2.sandbox import is_internal_att...
def is_internal_attribute(obj, attr): """Test if the attribute given is an internal python attribute. For example this function returns `True` for the `func_code` attribute of python objects. This is useful if the environment method :meth:`~SandboxedEnvironment.is_safe_attribute` is overridden. >...
This function checks if an attribute on a builtin mutable object (list, dict, set or deque) would modify it if called. It also supports the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and with Python 2.6 onwards the abstract base classes `MutableSet`, `MutableMapping`, and `MutableSe...
def modifies_known_mutable(obj, attr): """This function checks if an attribute on a builtin mutable object (list, dict, set or deque) would modify it if called. It also supports the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and with Python 2.6 onwards the abstract base classes `Mut...
The sandboxed environment will call this method to check if the attribute of an object is safe to access. Per default all attributes starting with an underscore are considered private as well as the special attributes of internal python objects as returned by the :func:`is_internal_attr...
def is_safe_attribute(self, obj, attr, value): """The sandboxed environment will call this method to check if the attribute of an object is safe to access. Per default all attributes starting with an underscore are considered private as well as the special attributes of internal python ...
For intercepted binary operator calls (:meth:`intercepted_binops`) this function is executed instead of the builtin operator. This can be used to fine tune the behavior of certain operators. .. versionadded:: 2.6
def call_binop(self, context, operator, left, right): """For intercepted binary operator calls (:meth:`intercepted_binops`) this function is executed instead of the builtin operator. This can be used to fine tune the behavior of certain operators. .. versionadded:: 2.6 """ ...
Subscribe an object from sandboxed code and prefer the attribute. The attribute passed *must* be a bytestring.
def getattr(self, obj, attribute): """Subscribe an object from sandboxed code and prefer the attribute. The attribute passed *must* be a bytestring. """ try: value = getattr(obj, attribute) except AttributeError: try: return obj[attribute]...
Return an undefined object for unsafe attributes.
def unsafe_undefined(self, obj, attribute): """Return an undefined object for unsafe attributes.""" return self.undefined('access to attribute %r of %r ' 'object is unsafe.' % ( attribute, obj.__class__.__name__ ), name=attribute, obj=obj, ex...