`mimetypes` — 将文件名映射到 MIME 类型 ¶

源代码： Lib/mimetypes.py

The mimetypes module converts between a filename or URL and the MIME type associated with the filename extension. Conversions are provided from filename to MIME type and from MIME type to filename extension; encodings are not supported for the latter conversion.

The module provides one class and a number of convenience functions. The functions are the normal interface to this module, but some applications may be interested in the class as well.

The functions described below provide the primary interface for this module. If the module has not been initialized, they will call init() if they rely on the information init() sets up.

mimetypes. guess_type ( url , strict = True ) ¶

Guess the type of a file based on its filename, path or URL, given by url . URL can be a string or a 像路径对象 .

The return value is a tuple (type, encoding) where type is None if the type can’t be guessed (missing or unknown suffix) or a string of the form 'type/subtype' , usable for a MIME content-type 头。

encoding is None for no encoding or the name of the program used to encode (e.g. compress or gzip ). The encoding is suitable for use as a Content-Encoding header, not 作为 Content-Transfer-Encoding header. The mappings are table driven. Encoding suffixes are case sensitive; type suffixes are first tried case sensitively, then case insensitively.

可选 strict argument is a flag specifying whether the list of known MIME types is limited to only the official types registered with IANA 。当 strict is True (the default), only the IANA types are supported; when strict is False , some additional non-standard but commonly used MIME types are also recognized.

3.8 版改变：添加支持 url being a 像路径对象 .

>>> import mimetypes >>> mimetypes.init() >>> mimetypes.knownfiles ['/etc/mime.types', '/etc/httpd/mime.types', ... ] >>> mimetypes.suffix_map['.tgz'] '.tar.gz' >>> mimetypes.encodings_map['.gz'] 'gzip' >>> mimetypes.types_map['.tgz'] 'application/x-tar-gz'

MimeTypes 对象 ¶

The


MimeTypes

class may be useful for applications which may want more than one MIME-type database; it provides an interface similar to the one of the


mimetypes

模块。

class mimetypes. MimeTypes ( filenames = () , strict = True ) ¶

This class represents a MIME-types database. By default, it provides access to the same database as the rest of this module. The initial database is a copy of that provided by the module, and may be extended by loading additional mime.types -style files into the database using the read() or readfp() methods. The mapping dictionaries may also be cleared before loading additional data if the default data is not desired.

可选 filenames parameter can be used to cause additional files to be loaded “on top” of the default database.

suffix_map ¶: Dictionary mapping suffixes to suffixes. This is used to allow recognition of encoded files for which the encoding and the type are indicated by the same extension. For example, the .tgz extension is mapped to .tar.gz to allow the encoding and type to be recognized separately. This is initially a copy of the global suffix_map defined in the module.

encodings_map ¶: Dictionary mapping filename extensions to encoding types. This is initially a copy of the global encodings_map defined in the module.

types_map ¶: Tuple containing two dictionaries, mapping filename extensions to MIME types: the first dictionary is for the non-standards types and the second one is for the standard types. They are initialized by common_types and types_map .

types_map_inv ¶: Tuple containing two dictionaries, mapping MIME types to a list of filename extensions: the first dictionary is for the non-standards types and the second one is for the standard types. They are initialized by common_types and types_map .

guess_extension ( type , strict = True ) ¶: 类似于 guess_extension() function, using the tables stored as part of the object.

guess_type ( url , strict = True ) ¶: 类似于 guess_type() function, using the tables stored as part of the object.

guess_file_type ( path , * , strict = True ) ¶

类似于 guess_file_type() function, using the tables stored as part of the object.

3.13 版添加。

guess_all_extensions ( type , strict = True ) ¶: 类似于 guess_all_extensions() function, using the tables stored as part of the object.

read ( filename , strict = True ) ¶

Load MIME information from a file named filename . This uses readfp() to parse the file.

若 strict is True , information will be added to list of standard types, else to the list of non-standard types.

readfp ( fp , strict = True ) ¶

Load MIME type information from an open file fp . The file must have the format of the standard mime.types 文件。

若 strict is True , information will be added to the list of standard types, else to the list of non-standard types.

read_windows_registry ( strict = True ) ¶: Load MIME type information from the Windows registry.

可用性：Windows。

若 strict is True , information will be added to the list of standard types, else to the list of non-standard types.

Added in version 3.2.

add_type ( type , ext , strict = True ) ¶

Add a mapping from the MIME type type to the extension ext . When the extension is already known, the new type will replace the old one. When the type is already known the extension will be added to the list of known extensions.

当 strict is True (the default), the mapping will be added to the official MIME types, otherwise to the non-standard ones.

`mimetypes` — 将文件名映射到 MIME 类型 ¶

MimeTypes 对象 ¶

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mimetypes — 将文件名映射到 MIME 类型 ¶

MimeTypes 对象 ¶

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