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Create a copy of this extension bound to another environment.
def bind(self, environment): """Create a copy of this extension bound to another environment.""" rv = object.__new__(self.__class__) rv.__dict__.update(self.__dict__) rv.environment = environment return rv
Return an attribute node for the current extension. This is useful to pass constants on extensions to generated template code. :: self.attr('_my_attribute', lineno=lineno)
def attr(self, name, lineno=None): """Return an attribute node for the current extension. This is useful to pass constants on extensions to generated template code. :: self.attr('_my_attribute', lineno=lineno) """ return nodes.ExtensionAttribute(self.identifier, na...
Call a method of the extension. This is a shortcut for :meth:`attr` + :class:`jinja2.nodes.Call`.
def call_method(self, name, args=None, kwargs=None, dyn_args=None, dyn_kwargs=None, lineno=None): """Call a method of the extension. This is a shortcut for :meth:`attr` + :class:`jinja2.nodes.Call`. """ if args is None: args = [] if kwargs is None...
Parse a translatable tag.
def parse(self, parser): """Parse a translatable tag.""" lineno = next(parser.stream).lineno num_called_num = False # find all the variables referenced. Additionally a variable can be # defined in the body of the trans block too, but this is checked at # a later state. ...
Parse until the next block tag with a given name.
def _parse_block(self, parser, allow_pluralize): """Parse until the next block tag with a given name.""" referenced = [] buf = [] while 1: if parser.stream.current.type == 'data': buf.append(parser.stream.current.value.replace('%', '%%')) next(...
Generates a useful node from the data provided.
def _make_node(self, singular, plural, variables, plural_expr, vars_referenced, num_called_num): """Generates a useful node from the data provided.""" # no variables referenced? no need to escape for old style # gettext invocations only if there are vars. if not vars_...
Returns a string suitable for running as a shell script. Useful for converting a arguments passed to a fabric task to be passed to a `local` or `run` command.
def get_cli_string(path=None, action=None, key=None, value=None, quote=None): """Returns a string suitable for running as a shell script. Useful for converting a arguments passed to a fabric task to be passed to a `local` or `run` command. """ command = ['dotenv'] if quote: command.appe...
Properly merges both requests and session hooks. This is necessary because when request_hooks == {'response': []}, the merge breaks Session hooks entirely.
def merge_hooks(request_hooks, session_hooks, dict_class=OrderedDict): """Properly merges both requests and session hooks. This is necessary because when request_hooks == {'response': []}, the merge breaks Session hooks entirely. """ if session_hooks is None or session_hooks.get('response') == []: ...
Receives a Response. Returns a redirect URI or ``None``
def get_redirect_target(self, resp): """Receives a Response. Returns a redirect URI or ``None``""" # Due to the nature of how requests processes redirects this method will # be called at least once upon the original response and at least twice # on each subsequent redirect response (if a...
Decide whether Authorization header should be removed when redirecting
def should_strip_auth(self, old_url, new_url): """Decide whether Authorization header should be removed when redirecting""" old_parsed = urlparse(old_url) new_parsed = urlparse(new_url) if old_parsed.hostname != new_parsed.hostname: return True # Special case: allow h...
When being redirected we may want to strip authentication from the request to avoid leaking credentials. This method intelligently removes and reapplies authentication where possible to avoid credential loss.
def rebuild_auth(self, prepared_request, response): """When being redirected we may want to strip authentication from the request to avoid leaking credentials. This method intelligently removes and reapplies authentication where possible to avoid credential loss. """ headers = pr...
This method re-evaluates the proxy configuration by considering the environment variables. If we are redirected to a URL covered by NO_PROXY, we strip the proxy configuration. Otherwise, we set missing proxy keys for this URL (in case they were stripped by a previous redirect). ...
def rebuild_proxies(self, prepared_request, proxies): """This method re-evaluates the proxy configuration by considering the environment variables. If we are redirected to a URL covered by NO_PROXY, we strip the proxy configuration. Otherwise, we set missing proxy keys for this URL (in c...
Constructs a :class:`PreparedRequest <PreparedRequest>` for transmission and returns it. The :class:`PreparedRequest` has settings merged from the :class:`Request <Request>` instance and those of the :class:`Session`. :param request: :class:`Request` instance to prepare with this ...
def prepare_request(self, request): """Constructs a :class:`PreparedRequest <PreparedRequest>` for transmission and returns it. The :class:`PreparedRequest` has settings merged from the :class:`Request <Request>` instance and those of the :class:`Session`. :param request: :class...
Constructs a :class:`Request <Request>`, prepares it and sends it. Returns :class:`Response <Response>` object. :param method: method for the new :class:`Request` object. :param url: URL for the new :class:`Request` object. :param params: (optional) Dictionary or bytes to be sent in the...
def request(self, method, url, params=None, data=None, headers=None, cookies=None, files=None, auth=None, timeout=None, allow_redirects=True, proxies=None, hooks=None, stream=None, verify=None, cert=None, json=None): """Constructs a :class:`Request <Request>`, prepares it and...
r"""Sends a GET request. Returns :class:`Response` object. :param url: URL for the new :class:`Request` object. :param \*\*kwargs: Optional arguments that ``request`` takes. :rtype: requests.Response
def get(self, url, **kwargs): r"""Sends a GET request. Returns :class:`Response` object. :param url: URL for the new :class:`Request` object. :param \*\*kwargs: Optional arguments that ``request`` takes. :rtype: requests.Response """ kwargs.setdefault('allow_redirects',...
r"""Sends a OPTIONS request. Returns :class:`Response` object. :param url: URL for the new :class:`Request` object. :param \*\*kwargs: Optional arguments that ``request`` takes. :rtype: requests.Response
def options(self, url, **kwargs): r"""Sends a OPTIONS request. Returns :class:`Response` object. :param url: URL for the new :class:`Request` object. :param \*\*kwargs: Optional arguments that ``request`` takes. :rtype: requests.Response """ kwargs.setdefault('allow_red...
r"""Sends a HEAD request. Returns :class:`Response` object. :param url: URL for the new :class:`Request` object. :param \*\*kwargs: Optional arguments that ``request`` takes. :rtype: requests.Response
def head(self, url, **kwargs): r"""Sends a HEAD request. Returns :class:`Response` object. :param url: URL for the new :class:`Request` object. :param \*\*kwargs: Optional arguments that ``request`` takes. :rtype: requests.Response """ kwargs.setdefault('allow_redirects...
Send a given PreparedRequest. :rtype: requests.Response
def send(self, request, **kwargs): """Send a given PreparedRequest. :rtype: requests.Response """ # Set defaults that the hooks can utilize to ensure they always have # the correct parameters to reproduce the previous request. kwargs.setdefault('stream', self.stream) ...
Check the environment and merge it with some settings. :rtype: dict
def merge_environment_settings(self, url, proxies, stream, verify, cert): """ Check the environment and merge it with some settings. :rtype: dict """ # Gather clues from the surrounding environment. if self.trust_env: # Set environment's proxies. ...
Returns the appropriate connection adapter for the given URL. :rtype: requests.adapters.BaseAdapter
def get_adapter(self, url): """ Returns the appropriate connection adapter for the given URL. :rtype: requests.adapters.BaseAdapter """ for (prefix, adapter) in self.adapters.items(): if url.lower().startswith(prefix.lower()): return adapter ...
Registers a connection adapter to a prefix. Adapters are sorted in descending order by prefix length.
def mount(self, prefix, adapter): """Registers a connection adapter to a prefix. Adapters are sorted in descending order by prefix length. """ self.adapters[prefix] = adapter keys_to_move = [k for k in self.adapters if len(k) < len(prefix)] for key in keys_to_move: ...
Return a string, safe for output, of subprocess output. We assume the data is in the locale preferred encoding. If it won't decode properly, we warn the user but decode as best we can. We also ensure that the output can be safely written to standard output without encoding errors.
def console_to_str(data): # type: (bytes) -> Text """Return a string, safe for output, of subprocess output. We assume the data is in the locale preferred encoding. If it won't decode properly, we warn the user but decode as best we can. We also ensure that the output can be safely written to ...
Return path's uid. Does not follow symlinks: https://github.com/pypa/pip/pull/935#discussion_r5307003 Placed this function in compat due to differences on AIX and Jython, that should eventually go away. :raises OSError: When path is a symlink or can't be read.
def get_path_uid(path): # type: (str) -> int """ Return path's uid. Does not follow symlinks: https://github.com/pypa/pip/pull/935#discussion_r5307003 Placed this function in compat due to differences on AIX and Jython, that should eventually go away. :raises OSError: When path is...
Expand ~ and ~user constructions. Includes a workaround for https://bugs.python.org/issue14768
def expanduser(path): # type: (str) -> str """ Expand ~ and ~user constructions. Includes a workaround for https://bugs.python.org/issue14768 """ expanded = os.path.expanduser(path) if path.startswith('~/') and expanded.startswith('//'): expanded = expanded[1:] return expanded
Provide an alternative for os.path.samefile on Windows/Python2
def samefile(file1, file2): # type: (str, str) -> bool """Provide an alternative for os.path.samefile on Windows/Python2""" if hasattr(os.path, 'samefile'): return os.path.samefile(file1, file2) else: path1 = os.path.normcase(os.path.abspath(file1)) path2 = os.path.normcase(os.pa...
Mutate the current entry to ensure that we are making the smallest amount of changes possible to the existing lockfile -- this will keep the old locked versions of packages if they satisfy new constraints. :return: None
def ensure_least_updates_possible(self): """ Mutate the current entry to ensure that we are making the smallest amount of changes possible to the existing lockfile -- this will keep the old locked versions of packages if they satisfy new constraints. :return: None """ ...
Retrieve all of the relevant constraints, aggregated from the pipfile, resolver, and parent dependencies and their respective conflict resolution where possible. :return: A set of **InstallRequirement** instances representing constraints :rtype: Set
def get_constraints(self): """ Retrieve all of the relevant constraints, aggregated from the pipfile, resolver, and parent dependencies and their respective conflict resolution where possible. :return: A set of **InstallRequirement** instances representing constraints :rtype: Se...
Given a resolved entry with multiple parent dependencies with different constraints, searches for the resolution that satisfies all of the parent constraints. :return: A new **InstallRequirement** satisfying all parent constraints :raises: :exc:`~pipenv.exceptions.DependencyConflict` if...
def constraint_from_parent_conflicts(self): """ Given a resolved entry with multiple parent dependencies with different constraints, searches for the resolution that satisfies all of the parent constraints. :return: A new **InstallRequirement** satisfying all parent constraints ...
Retrieves the full set of available constraints and iterate over them, validating that they exist and that they are not causing unresolvable conflicts. :return: True if the constraints are satisfied by the resolution provided :raises: :exc:`pipenv.exceptions.DependencyConflict` if the constrain...
def validate_constraints(self): """ Retrieves the full set of available constraints and iterate over them, validating that they exist and that they are not causing unresolvable conflicts. :return: True if the constraints are satisfied by the resolution provided :raises: :exc:`pi...
Monkey-patch urllib3 with SecureTransport-backed SSL-support.
def inject_into_urllib3(): """ Monkey-patch urllib3 with SecureTransport-backed SSL-support. """ util.ssl_.SSLContext = SecureTransportContext util.HAS_SNI = HAS_SNI util.ssl_.HAS_SNI = HAS_SNI util.IS_SECURETRANSPORT = True util.ssl_.IS_SECURETRANSPORT = True
Undo monkey-patching by :func:`inject_into_urllib3`.
def extract_from_urllib3(): """ Undo monkey-patching by :func:`inject_into_urllib3`. """ util.ssl_.SSLContext = orig_util_SSLContext util.HAS_SNI = orig_util_HAS_SNI util.ssl_.HAS_SNI = orig_util_HAS_SNI util.IS_SECURETRANSPORT = False util.ssl_.IS_SECURETRANSPORT = False
SecureTransport read callback. This is called by ST to request that data be returned from the socket.
def _read_callback(connection_id, data_buffer, data_length_pointer): """ SecureTransport read callback. This is called by ST to request that data be returned from the socket. """ wrapped_socket = None try: wrapped_socket = _connection_refs.get(connection_id) if wrapped_socket is ...
SecureTransport write callback. This is called by ST to request that data actually be sent on the network.
def _write_callback(connection_id, data_buffer, data_length_pointer): """ SecureTransport write callback. This is called by ST to request that data actually be sent on the network. """ wrapped_socket = None try: wrapped_socket = _connection_refs.get(connection_id) if wrapped_sock...
A context manager that can be used to wrap calls that do I/O from SecureTransport. If any of the I/O callbacks hit an exception, this context manager will correctly propagate the exception after the fact. This avoids silently swallowing those exceptions. It also correctly forces the soc...
def _raise_on_error(self): """ A context manager that can be used to wrap calls that do I/O from SecureTransport. If any of the I/O callbacks hit an exception, this context manager will correctly propagate the exception after the fact. This avoids silently swallowing those except...
Sets up the allowed ciphers. By default this matches the set in util.ssl_.DEFAULT_CIPHERS, at least as supported by macOS. This is done custom and doesn't allow changing at this time, mostly because parsing OpenSSL cipher strings is going to be a freaking nightmare.
def _set_ciphers(self): """ Sets up the allowed ciphers. By default this matches the set in util.ssl_.DEFAULT_CIPHERS, at least as supported by macOS. This is done custom and doesn't allow changing at this time, mostly because parsing OpenSSL cipher strings is going to be a freak...
Called when we have set custom validation. We do this in two cases: first, when cert validation is entirely disabled; and second, when using a custom trust DB.
def _custom_validate(self, verify, trust_bundle): """ Called when we have set custom validation. We do this in two cases: first, when cert validation is entirely disabled; and second, when using a custom trust DB. """ # If we disabled cert validation, just say: cool. ...
Dump the bytecode into the file or file like object passed.
def write_bytecode(self, f): """Dump the bytecode into the file or file like object passed.""" if self.code is None: raise TypeError('can\'t write empty bucket') f.write(bc_magic) pickle.dump(self.checksum, f, 2) marshal_dump(self.code, f)
Returns the unique hash key for this template name.
def get_cache_key(self, name, filename=None): """Returns the unique hash key for this template name.""" hash = sha1(name.encode('utf-8')) if filename is not None: filename = '|' + filename if isinstance(filename, text_type): filename = filename.encode('utf...
Return a cache bucket for the given template. All arguments are mandatory but filename may be `None`.
def get_bucket(self, environment, name, filename, source): """Return a cache bucket for the given template. All arguments are mandatory but filename may be `None`. """ key = self.get_cache_key(name, filename) checksum = self.get_source_checksum(source) bucket = Bucket(en...
Look for an encoding by its label. This is the spec’s `get an encoding <http://encoding.spec.whatwg.org/#concept-encoding-get>`_ algorithm. Supported labels are listed there. :param label: A string. :returns: An :class:`Encoding` object, or :obj:`None` for an unknown label.
def lookup(label): """ Look for an encoding by its label. This is the spec’s `get an encoding <http://encoding.spec.whatwg.org/#concept-encoding-get>`_ algorithm. Supported labels are listed there. :param label: A string. :returns: An :class:`Encoding` object, or :obj:`None` for an ...
Accept either an encoding object or label. :param encoding: An :class:`Encoding` object or a label string. :returns: An :class:`Encoding` object. :raises: :exc:`~exceptions.LookupError` for an unknown label.
def _get_encoding(encoding_or_label): """ Accept either an encoding object or label. :param encoding: An :class:`Encoding` object or a label string. :returns: An :class:`Encoding` object. :raises: :exc:`~exceptions.LookupError` for an unknown label. """ if hasattr(encoding_or_label, 'codec...
Decode a single string. :param input: A byte string :param fallback_encoding: An :class:`Encoding` object or a label string. The encoding to use if :obj:`input` does note have a BOM. :param errors: Type of error handling. See :func:`codecs.register`. :raises: :exc:`~exceptions.LookupErr...
def decode(input, fallback_encoding, errors='replace'): """ Decode a single string. :param input: A byte string :param fallback_encoding: An :class:`Encoding` object or a label string. The encoding to use if :obj:`input` does note have a BOM. :param errors: Type of error handling. S...
Return (bom_encoding, input), with any BOM removed from the input.
def _detect_bom(input): """Return (bom_encoding, input), with any BOM removed from the input.""" if input.startswith(b'\xFF\xFE'): return _UTF16LE, input[2:] if input.startswith(b'\xFE\xFF'): return _UTF16BE, input[2:] if input.startswith(b'\xEF\xBB\xBF'): return UTF8, input[3:] ...
Encode a single string. :param input: An Unicode string. :param encoding: An :class:`Encoding` object or a label string. :param errors: Type of error handling. See :func:`codecs.register`. :raises: :exc:`~exceptions.LookupError` for an unknown encoding label. :return: A byte string.
def encode(input, encoding=UTF8, errors='strict'): """ Encode a single string. :param input: An Unicode string. :param encoding: An :class:`Encoding` object or a label string. :param errors: Type of error handling. See :func:`codecs.register`. :raises: :exc:`~exceptions.LookupError` for an unkn...
"Pull"-based decoder. :param input: An iterable of byte strings. The input is first consumed just enough to determine the encoding based on the precense of a BOM, then consumed on demand when the return value is. :param fallback_encoding: An :class:`Encoding` object or ...
def iter_decode(input, fallback_encoding, errors='replace'): """ "Pull"-based decoder. :param input: An iterable of byte strings. The input is first consumed just enough to determine the encoding based on the precense of a BOM, then consumed on demand when the return value ...
Return a generator that first yields the :obj:`Encoding`, then yields output chukns as Unicode strings.
def _iter_decode_generator(input, decoder): """Return a generator that first yields the :obj:`Encoding`, then yields output chukns as Unicode strings. """ decode = decoder.decode input = iter(input) for chunck in input: output = decode(chunck) if output: assert decod...
“Pull”-based encoder. :param input: An iterable of Unicode strings. :param encoding: An :class:`Encoding` object or a label string. :param errors: Type of error handling. See :func:`codecs.register`. :raises: :exc:`~exceptions.LookupError` for an unknown encoding label. :returns: An iterable of byt...
def iter_encode(input, encoding=UTF8, errors='strict'): """ “Pull”-based encoder. :param input: An iterable of Unicode strings. :param encoding: An :class:`Encoding` object or a label string. :param errors: Type of error handling. See :func:`codecs.register`. :raises: :exc:`~exceptions.LookupEr...
Given a list of Python tuples, create an associated CFDictionary.
def _cf_dictionary_from_tuples(tuples): """ Given a list of Python tuples, create an associated CFDictionary. """ dictionary_size = len(tuples) # We need to get the dictionary keys and values out in the same order. keys = (t[0] for t in tuples) values = (t[1] for t in tuples) cf_keys = ...
Creates a Unicode string from a CFString object. Used entirely for error reporting. Yes, it annoys me quite a lot that this function is this complex.
def _cf_string_to_unicode(value): """ Creates a Unicode string from a CFString object. Used entirely for error reporting. Yes, it annoys me quite a lot that this function is this complex. """ value_as_void_p = ctypes.cast(value, ctypes.POINTER(ctypes.c_void_p)) string = CoreFoundation.CFSt...
Checks the return code and throws an exception if there is an error to report
def _assert_no_error(error, exception_class=None): """ Checks the return code and throws an exception if there is an error to report """ if error == 0: return cf_error_string = Security.SecCopyErrorMessageString(error, None) output = _cf_string_to_unicode(cf_error_string) CoreFo...
Given a bundle of certs in PEM format, turns them into a CFArray of certs that can be used to validate a cert chain.
def _cert_array_from_pem(pem_bundle): """ Given a bundle of certs in PEM format, turns them into a CFArray of certs that can be used to validate a cert chain. """ # Normalize the PEM bundle's line endings. pem_bundle = pem_bundle.replace(b"\r\n", b"\n") der_certs = [ base64.b64decod...
This function creates a temporary Mac keychain that we can use to work with credentials. This keychain uses a one-time password and a temporary file to store the data. We expect to have one keychain per socket. The returned SecKeychainRef must be freed by the caller, including calling SecKeychainDelete....
def _temporary_keychain(): """ This function creates a temporary Mac keychain that we can use to work with credentials. This keychain uses a one-time password and a temporary file to store the data. We expect to have one keychain per socket. The returned SecKeychainRef must be freed by the caller, i...
Given a single file, loads all the trust objects from it into arrays and the keychain. Returns a tuple of lists: the first list is a list of identities, the second a list of certs.
def _load_items_from_file(keychain, path): """ Given a single file, loads all the trust objects from it into arrays and the keychain. Returns a tuple of lists: the first list is a list of identities, the second a list of certs. """ certificates = [] identities = [] result_array = Non...
Load certificates and maybe keys from a number of files. Has the end goal of returning a CFArray containing one SecIdentityRef, and then zero or more SecCertificateRef objects, suitable for use as a client certificate trust chain.
def _load_client_cert_chain(keychain, *paths): """ Load certificates and maybe keys from a number of files. Has the end goal of returning a CFArray containing one SecIdentityRef, and then zero or more SecCertificateRef objects, suitable for use as a client certificate trust chain. """ # Ok, ...
Should we redirect and where to? :returns: Truthy redirect location string if we got a redirect status code and valid location. ``None`` if redirect status and no location. ``False`` if not a redirect status code.
def get_redirect_location(self): """ Should we redirect and where to? :returns: Truthy redirect location string if we got a redirect status code and valid location. ``None`` if redirect status and no location. ``False`` if not a redirect status code. """ ...
Set initial length value for Response content if available.
def _init_length(self, request_method): """ Set initial length value for Response content if available. """ length = self.headers.get('content-length') if length is not None: if self.chunked: # This Response will fail with an IncompleteRead if it can'...
Set-up the _decoder attribute if necessary.
def _init_decoder(self): """ Set-up the _decoder attribute if necessary. """ # Note: content-encoding value should be case-insensitive, per RFC 7230 # Section 3.2 content_encoding = self.headers.get('content-encoding', '').lower() if self._decoder is None: ...
Flushes the decoder. Should only be called if the decoder is actually being used.
def _flush_decoder(self): """ Flushes the decoder. Should only be called if the decoder is actually being used. """ if self._decoder: buf = self._decoder.decompress(b'') return buf + self._decoder.flush() return b''
Catch low-level python exceptions, instead re-raising urllib3 variants, so that low-level exceptions are not leaked in the high-level api. On exit, release the connection back to the pool.
def _error_catcher(self): """ Catch low-level python exceptions, instead re-raising urllib3 variants, so that low-level exceptions are not leaked in the high-level api. On exit, release the connection back to the pool. """ clean_exit = False try: ...
Similar to :meth:`httplib.HTTPResponse.read`, but with two additional parameters: ``decode_content`` and ``cache_content``. :param amt: How much of the content to read. If specified, caching is skipped because it doesn't make sense to cache partial content as the full ...
def read(self, amt=None, decode_content=None, cache_content=False): """ Similar to :meth:`httplib.HTTPResponse.read`, but with two additional parameters: ``decode_content`` and ``cache_content``. :param amt: How much of the content to read. If specified, caching is skipped ...
Given an :class:`httplib.HTTPResponse` instance ``r``, return a corresponding :class:`urllib3.response.HTTPResponse` object. Remaining parameters are passed to the HTTPResponse constructor, along with ``original_response=r``.
def from_httplib(ResponseCls, r, **response_kw): """ Given an :class:`httplib.HTTPResponse` instance ``r``, return a corresponding :class:`urllib3.response.HTTPResponse` object. Remaining parameters are passed to the HTTPResponse constructor, along with ``original_response=r``. ...
Similar to :meth:`HTTPResponse.read`, but with an additional parameter: ``decode_content``. :param amt: How much of the content to read. If specified, caching is skipped because it doesn't make sense to cache partial content as the full response. :param deco...
def read_chunked(self, amt=None, decode_content=None): """ Similar to :meth:`HTTPResponse.read`, but with an additional parameter: ``decode_content``. :param amt: How much of the content to read. If specified, caching is skipped because it doesn't make sense to c...
Returns the URL that was the source of this response. If the request that generated this response redirected, this method will return the final redirect location.
def geturl(self): """ Returns the URL that was the source of this response. If the request that generated this response redirected, this method will return the final redirect location. """ if self.retries is not None and len(self.retries.history): return self....
Set Ok (success) finalizer to a spinner.
def ok(self, text=u"OK", err=False): """Set Ok (success) finalizer to a spinner.""" # Do not display spin text for ok state self._text = None _text = to_text(text) if text else u"OK" err = err or not self.write_to_stdout self._freeze(_text, err=err)
Set fail finalizer to a spinner.
def fail(self, text=u"FAIL", err=False): """Set fail finalizer to a spinner.""" # Do not display spin text for fail state self._text = None _text = text if text else u"FAIL" err = err or not self.write_to_stdout self._freeze(_text, err=err)
Write error text in the terminal without breaking the spinner.
def write_err(self, text): """Write error text in the terminal without breaking the spinner.""" stderr = self.stderr if self.stderr.closed: stderr = sys.stderr stderr.write(decode_output(u"\r", target_stream=stderr)) stderr.write(decode_output(CLEAR_LINE, target_strea...
Stop spinner, compose last frame and 'freeze' it.
def _freeze(self, final_text, err=False): """Stop spinner, compose last frame and 'freeze' it.""" if not final_text: final_text = "" target = self.stderr if err else self.stdout if target.closed: target = sys.stderr if err else sys.stdout text = to_text(fi...
Like `describe_token` but for token expressions.
def describe_token_expr(expr): """Like `describe_token` but for token expressions.""" if ':' in expr: type, value = expr.split(':', 1) if type == 'name': return value else: type = expr return _describe_token_type(type)
Return a lexer which is probably cached.
def get_lexer(environment): """Return a lexer which is probably cached.""" key = (environment.block_start_string, environment.block_end_string, environment.variable_start_string, environment.variable_end_string, environment.comment_start_string, environment...
Calls tokeniter + tokenize and wraps it in a token stream.
def tokenize(self, source, name=None, filename=None, state=None): """Calls tokeniter + tokenize and wraps it in a token stream. """ stream = self.tokeniter(source, name, filename, state) return TokenStream(self.wrap(stream, name, filename), name, filename)
This is called with the stream as returned by `tokenize` and wraps every token in a :class:`Token` and converts the value.
def wrap(self, stream, name=None, filename=None): """This is called with the stream as returned by `tokenize` and wraps every token in a :class:`Token` and converts the value. """ for lineno, token, value in stream: if token in ignored_tokens: continue ...
Load 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 r...
def load_pyproject_toml( use_pep517, # type: Optional[bool] pyproject_toml, # type: str setup_py, # type: str req_name # type: str ): # type: (...) -> Optional[Tuple[List[str], str, List[str]]] """Load the pyproject.toml file. Parameters: use_pep517 - Has the user requested PEP ...
Iterate through CPython versions available for Pipenv to install.
def iter_installable_versions(self): """Iterate through CPython versions available for Pipenv to install. """ for name in self._pyenv('install', '--list').out.splitlines(): try: version = Version.parse(name.strip()) except ValueError: conti...
Find a version in pyenv from the version supplied. A ValueError is raised if a matching version cannot be found.
def find_version_to_install(self, name): """Find a version in pyenv from the version supplied. A ValueError is raised if a matching version cannot be found. """ version = Version.parse(name) if version.patch is not None: return name try: best_matc...
Install the given version with pyenv. The version must be a ``Version`` instance representing a version found in pyenv. A ValueError is raised if the given version does not have a match in pyenv. A PyenvError is raised if the pyenv command fails.
def install(self, version): """Install the given version with pyenv. The version must be a ``Version`` instance representing a version found in pyenv. A ValueError is raised if the given version does not have a match in pyenv. A PyenvError is raised if the pyenv command fails. ...
Parses an editable requirement into: - a requirement name - an URL - extras - editable options Accepted requirements: svn+http://blahblah@rev#egg=Foobar[baz]&subdirectory=version_subdir .[some_extra]
def parse_editable(editable_req): # type: (str) -> Tuple[Optional[str], str, Optional[Set[str]]] """Parses an editable requirement into: - a requirement name - an URL - extras - editable options Accepted requirements: svn+http://blahblah@rev#egg=Foobar[baz]&subdirecto...
Returns helpful msg in case requirements file does not exist, or cannot be parsed. :params req: Requirements file path
def deduce_helpful_msg(req): # type: (str) -> str """Returns helpful msg in case requirements file does not exist, or cannot be parsed. :params req: Requirements file path """ msg = "" if os.path.exists(req): msg = " It does exist." # Try to parse and check if it is a requir...
Creates an InstallRequirement from a name, which might be a requirement, directory containing 'setup.py', filename, or URL.
def install_req_from_line( name, # type: str comes_from=None, # type: Optional[Union[str, InstallRequirement]] use_pep517=None, # type: Optional[bool] isolated=False, # type: bool options=None, # type: Optional[Dict[str, Any]] wheel_cache=None, # type: Optional[WheelCache] constraint=F...
Return the file cache path based on the URL. This does not ensure the file exists!
def url_to_file_path(url, filecache): """Return the file cache path based on the URL. This does not ensure the file exists! """ key = CacheController.cache_url(url) return filecache._fn(key)
Write the PID in the named PID file. Get the numeric process ID (“PID”) of the current process and write it to the named file as a line of text.
def write_pid_to_pidfile(pidfile_path): """ Write the PID in the named PID file. Get the numeric process ID (“PID”) of the current process and write it to the named file as a line of text. """ open_flags = (os.O_CREAT | os.O_EXCL | os.O_WRONLY) open_mode = 0o644 pidfile_fd = os...
Remove the named PID file if it exists. Removing a PID file that doesn't already exist puts us in the desired state, so we ignore the condition if the file does not exist.
def remove_existing_pidfile(pidfile_path): """ Remove the named PID file if it exists. Removing a PID file that doesn't already exist puts us in the desired state, so we ignore the condition if the file does not exist. """ try: os.remove(pidfile_path) except OSError...
Release the lock. Removes the PID file to release the lock, or raises an error if the current process does not hold the lock.
def release(self): """ Release the lock. Removes the PID file to release the lock, or raises an error if the current process does not hold the lock. """ if not self.is_locked(): raise NotLocked("%s is not locked" % self.path) if not self.i_am_loc...
Export the Bazaar repository at the url to the destination location
def export(self, location): """ Export the Bazaar repository at the url to the destination location """ # Remove the location to make sure Bazaar can export it correctly if os.path.exists(location): rmtree(location) with TempDirectory(kind="export") as temp_d...
Gather details from installed distributions. Print distribution name, version, location, and installed files. Installed files requires a pip generated 'installed-files.txt' in the distributions '.egg-info' directory.
def search_packages_info(query): """ Gather details from installed distributions. Print distribution name, version, location, and installed files. Installed files requires a pip generated 'installed-files.txt' in the distributions '.egg-info' directory. """ installed = {} for p in pkg_re...
Print the informations from installed distributions found.
def print_results(distributions, list_files=False, verbose=False): """ Print the informations from installed distributions found. """ results_printed = False for i, dist in enumerate(distributions): results_printed = True if i > 0: logger.info("---") name = dist....
Convenience method that raises `exc` with the message, passed line number or last line number as well as the current name and filename.
def fail(self, msg, lineno=None, exc=TemplateSyntaxError): """Convenience method that raises `exc` with the message, passed line number or last line number as well as the current name and filename. """ if lineno is None: lineno = self.stream.current.lineno rai...
Called if the parser encounters an unknown tag. Tries to fail with a human readable error message that could help to identify the problem.
def fail_unknown_tag(self, name, lineno=None): """Called if the parser encounters an unknown tag. Tries to fail with a human readable error message that could help to identify the problem. """ return self._fail_ut_eof(name, self._end_token_stack, lineno)
Like fail_unknown_tag but for end of template situations.
def fail_eof(self, end_tokens=None, lineno=None): """Like fail_unknown_tag but for end of template situations.""" stack = list(self._end_token_stack) if end_tokens is not None: stack.append(end_tokens) return self._fail_ut_eof(None, stack, lineno)
Are we at the end of a tuple?
def is_tuple_end(self, extra_end_rules=None): """Are we at the end of a tuple?""" if self.stream.current.type in ('variable_end', 'block_end', 'rparen'): return True elif extra_end_rules is not None: return self.stream.current.test_any(extra_end_rules) return Fals...
Return a new free identifier as :class:`~jinja2.nodes.InternalName`.
def free_identifier(self, lineno=None): """Return a new free identifier as :class:`~jinja2.nodes.InternalName`.""" self._last_identifier += 1 rv = object.__new__(nodes.InternalName) nodes.Node.__init__(rv, 'fi%d' % self._last_identifier, lineno=lineno) return rv
Parse a single statement.
def parse_statement(self): """Parse a single statement.""" token = self.stream.current if token.type != 'name': self.fail('tag name expected', token.lineno) self._tag_stack.append(token.value) pop_tag = True try: if token.value in _statement_keywor...
Parse multiple statements into a list until one of the end tokens is reached. This is used to parse the body of statements as it also parses template data if appropriate. The parser checks first if the current token is a colon and skips it if there is one. Then it checks for the block...
def parse_statements(self, end_tokens, drop_needle=False): """Parse multiple statements into a list until one of the end tokens is reached. This is used to parse the body of statements as it also parses template data if appropriate. The parser checks first if the current token is a col...
Parse an assign statement.
def parse_set(self): """Parse an assign statement.""" lineno = next(self.stream).lineno target = self.parse_assign_target(with_namespace=True) if self.stream.skip_if('assign'): expr = self.parse_tuple() return nodes.Assign(target, expr, lineno=lineno) filt...
Parse a for loop.
def parse_for(self): """Parse a for loop.""" lineno = self.stream.expect('name:for').lineno target = self.parse_assign_target(extra_end_rules=('name:in',)) self.stream.expect('name:in') iter = self.parse_tuple(with_condexpr=False, extra_end_rules=(...
Parse an if construct.
def parse_if(self): """Parse an if construct.""" node = result = nodes.If(lineno=self.stream.expect('name:if').lineno) while 1: node.test = self.parse_tuple(with_condexpr=False) node.body = self.parse_statements(('name:elif', 'name:else', ...
Parse an assignment target. As Jinja2 allows assignments to tuples, this function can parse all allowed assignment targets. Per default assignments to tuples are parsed, that can be disable however by setting `with_tuple` to `False`. If only assignments to names are wanted `name_only`...
def parse_assign_target(self, with_tuple=True, name_only=False, extra_end_rules=None, with_namespace=False): """Parse an assignment target. As Jinja2 allows assignments to tuples, this function can parse all allowed assignment targets. Per default assignments to tup...
Parse the whole template into a `Template` node.
def parse(self): """Parse the whole template into a `Template` node.""" result = nodes.Template(self.subparse(), lineno=1) result.set_environment(self.environment) return result
This returns an abbreviated stack trace with lines that only concern the caller. In other words, the stack trace inside the Pexpect module is not included.
def get_trace(self): '''This returns an abbreviated stack trace with lines that only concern the caller. In other words, the stack trace inside the Pexpect module is not included. ''' tblist = traceback.extract_tb(sys.exc_info()[2]) tblist = [item for item in tblist if ('pexpect...
Normalize the URL to create a safe key for the cache
def _urlnorm(cls, uri): """Normalize the URL to create a safe key for the cache""" (scheme, authority, path, query, fragment) = parse_uri(uri) if not scheme or not authority: raise Exception("Only absolute URIs are allowed. uri = %s" % uri) scheme = scheme.lower() au...
Parses a URI using the regex given in Appendix B of RFC 3986. (scheme, authority, path, query, fragment) = parse_uri(uri)
def parse_uri(uri): """Parses a URI using the regex given in Appendix B of RFC 3986. (scheme, authority, path, query, fragment) = parse_uri(uri) """ groups = URI.match(uri).groups() return (groups[1], groups[3], groups[4], groups[6], groups[8])