NAME
epydoc - generate API documentation from Python
docstrings
SYNOPSIS
- epydoc [--html | --latex | --dvi |
--ps | --pdf] [-o dir]
[--docformat format] [-n name]
[-u url] [-t page] [-c
sheet] [--private-css sheet] [--navlink
html] [--help-file file] [--private]
[--no-private] [--inheritance style]
[--show-imports] [--builtins]
[--ignore-param-mismatch] [--separate-classes]
[-q] [-v] modules...
- epydoc --check [--tests tests]
[--private] [--builtins]
[--ignore-param-mismatch] [-q] [-v]
modules...
epydoc -h [topic]
epydoc -V
DESCRIPTION
epydoc
- generates API documentation for Python modules and packages,
based on their docstrings. A lightweight markup language called
epytext can be used to format docstrings, and to add
information about specific fields, such as parameters and instance
variables. Epydoc also understands docstrings written in
ReStructuredText, Javadoc, and plaintext. Currently, epydoc
supports two basic output formats: HTML and LaTeX.
The HTML API documentation produced by epydoc consists of
a set of HTML files. Two subdirectories are created for the public
and private documentation. Within each subdirectory, every class
and module is documented in its own file. An index file, a trees
file, a help file, and a frames-based table of contents are also
created.
The LaTeX API documentation produced by epydoc consists
of a main LaTeX file, and a LaTeX file for each module. If you use
the --dvi, --ps, or --pdf options, then
epydoc will invoke external commands to convert the LaTeX
output to the requested format. Note that the LaTeX files
containing the documentation for individual modules can be included
as chapters or sections of other LaTeX documents, using the LaTeX
\\include command. If you wish to include individual classes
in other LaTeX documents, then use the --separate-classes
option to produce a separate LaTeX file for each class.
epydoc can also be used to check the completeness of the
API documentation. By default, it checks that every public package,
module, class, method, and function has a docstring description.
The --tests option can be used to specify additional tests
to perform.
OPTIONS
Options are divided into five categories: action
selection options; HTML documentation generation options; LaTeX
documentation generation options; documentation checking options;
and other options. All options must preceed the list of modules.
ACTION SELECTION OPTIONS
-
- --html
- Generate HTML output. (default)
- --latex
- Generate LaTeX output.
- --dvi
- Generate dvi output. This option first creates LaTeX output,
and then uses latex and makeindex to convert the
LaTeX files into a single dvi file.
- --ps
- Generate postscript output. This option first creates LaTeX
output, and then uses latex, makeindex, and
dvips to convert the LaTeX files into a single postscript
file.
- --pdf
- Generate Adobe Acrobat (pdf) output. This option first
creates LaTeX output, and then uses latex, makeindex,
dvips, and ps2pdf to convert the LaTeX files into a
single pdf file.
- --check
- Perform completeness checks on the documentation.
HTML DOCUMENTATION GENERATION OPTIONS
-
- modules...
- The list of the modules that should be documented. Modules can
be specified using module names (such as os.path), filenames
(such as epydoc/epytext.py), or directory names (such as
epydoc/). Directory names specify packages, and are expanded
to include all sub-modules and sub-packages.
- --builtins
- Add the builtin modules (as defined by
sys.builtin_module_names) to the list of modules to document.
- -c sheet, --css sheet
- CSS stylesheet for HTML files containing public API
documentation. If sheet is a file, then the stylesheet is
copied from that file; otherwise, sheet is taken to be the
name of a built-in stylesheet. For a list of the built-in
stylesheets, run epydoc --help css. If a CSS stylesheet is
not specified, then the default stylesheet is used.
- --docformat format
- Set the default value for __docformat__ to
format. __docformat__ is a module variable that
specifies the markup language for the docstrings in a module. Its
value consists of the name of a markup language, optionally
followed by a language code (such as en for English). For a
list of the markup languages currently recognized by epydoc, run
epydoc --help docformat.
- --help-file file
- A file containing the body of the help page for the HTML
output. Navigation bars will be added at the top and bottom of this
help file. If no file is specified, then a default help file is
used.
- --ignore-param-mismatch
- Do not issue warnings when a method's parameters do not match
the parameters of the base class method that it overrides.
- --inheritance format
- The format that should be used to display inherited methods,
variables, and properties in the "summary" tables. If format
is "grouped," then inherited objects are gathered into groups,
based on which class that they are inherited from. If format
is "listed," then inherited objects are listed in a short list at
the end of the summary table. If format is "included," then
inherited objects are mixed in with non-inherited objects. The
default format for HTML output is "grouped."
- -n name, --name name
- The name of the project whose documentation is being generated.
This is used in the index page's title, and in the help page. It is
This is used in the index page's title, and in the help page. It is
also used to create the homepage link on the navigation bar, if the
--navlink option is not used.
- --navlink html
- HTML code for the homepage link on the navigation bar. If this
HTML code contains any hyperlinks (<a href=...>), then
it will be inserted verbatim. If it does not contain any hperlinks,
and a project url is specified (with --url), then a
hyperlink to the specified URL is added to the link.
- --no-frames
- Do not display the frames-based table of contents on the main
API documentation page (index.html). This option just
changes the default view; the user can still access the
frames-based table of contents by clicking on frames in the
navigation bar.
- -o dir, --output dir,
--target dir
- The output directory for HTML files. By default, HTML files are
written to the html directory.
- --private, --no-private
- These options control whether documentation is generated for
private objects. By default, HTML documentation includes private
objects, and users can choose whether to view private objects or
not, by clicking on "show private" and "hide private" links. But if
you want to discourage users from directly accessing private
objects, then you may prefer not to generate documentation for
private objects. The --no-private option is also useful if
you want to generate documentation more quickly, since epydoc will
only need to produce half as many HTML pages.
- --private-css sheet
- CSS stylesheet for HTML files containing private API
documentation. If sheet is a file, then the stylesheet is
copied from that file; otherwise, sheet is taken to be the
name of a built-in stylesheet. For a list of the built-in
stylesheets, run epydoc --help css. If a CSS stylesheet is
not specified, then epydoc copies the stylesheet for public API
documentation (see --css).
- -q, --quiet
- Produce quiet output. If -q is used multiple times, it
produces successively more quiet output (by suppressing warning
messages).
- --show-imports
- Include a list of the classes, functions, and variables that
each module imports on the module documentation pages.
- -t page, --top page
- The top page for the documentation. page can be the name
of a documented module or a class; the name of a file containing a
documented module; an absolute URL (starting with "http:"); or one
of the special names trees.html, indices.html, or
help.html, indicating the corresponding API documentation
pages.
- -u url, --url url
- The URL of the project's homepage. This URL is used by the
homepage link on the navigation bar.
- -v, --verbose
- Produce verbose output. If -v is used multiple times, it
produces successively more verbose output.
LATEX DOCUMENTATION GENERATION OPTIONS
- LaTeX documentation generation options are used when producing
LaTeX, postscript (ps), or pdf output.
- modules...
- The list of the modules that should be documented. Modules can
be specified using module names (such as os.path), filenames
(such as epydoc/epytext.py), or directory names (such as
epydoc/). Directory names specify packages, and are expanded
to include all sub-modules and sub-packages.
- --builtins
- Add the builtin modules (as defined by
sys.builtin_module_names) to the list of modules to document.
- --docformat format
- Set the default value for __docformat__ to
format. __docformat__ is a module variable that
specifies the markup language for the docstrings in a module. Its
value consists of the name of a markup language, optionally
followed by a language code (such as en for English). For a
list of the markup languages currently recognized by epydoc, run
epydoc --help docformat.
- --ignore-param-mismatch
- Do not issue warnings when a method's parameters do not match
the parameters of the base class method that it overrides.
- --inheritance format
- The format that should be used to display inherited methods,
variables, and properties. If format is "grouped," then
inherited objects are gathered into groups, based on which class
that they are inherited from. If format is "listed," then
inherited objects are listed in a short list at the end of their
section. If format is "included," then inherited objects are
mixed in with non-inherited objects. The default format for LaTeX
output is "listed."
- -n name, --name name
- The name of the project whose documentation is being generated.
This is used on the title page, in the page header, and in the pdf
This is used on the title page, in the page header, and in the pdf
metadata.
- -o dir, --output dir,
--target dir
- The output directory. By default, HTML files are written to the
html directory, and LaTeX files are written to the
latex directory.
- --private, --no-private
- These options control whether documentation is generated for
private objects. By default, LaTeX output only includes
documentation for public objects.
- -q, --quiet
- Produce quiet output. If -q is used multiple times, it
produces successively more quiet output (by suppressing warning
messages).
- --separate-classes
- Describe all classes in a separate section of the
documentation, instead of including them in the documentation for
their modules. This creates a separate LaTeX file for each class,
so it can also be useful if you want to include the documentation
for one or two classes as sections of your own LaTeX document.
- -v, --verbose
- Produce verbose output. If -v is used multiple times, it
produces successively more verbose output.
DOCUMENTATION COMPLETENESS CHECKING OPTIONS
- The --check option is used to perform completeness
checks on the documentation of your project. By default, epydoc
checks to make sure that all public objects have docstrings.
Additional checks can be added with the --tests option.
- modules...
- The list of the modules whose documentation should be checked.
Modules can be specified using module names (such as
os.path), filenames (such as epydoc/epytext.py), or
directory names (such as epydoc/). Directory names specify
packages, and are expanded to include all sub-modules and
sub-packages.
- --ignore-param-mismatch
- Do not issue warnings when a method's parameters do not match
the parameters of the base class method that it overrides.
- --private
- Perform checks on private objects
- -q, --quiet
- Produce quiet output. If -q is used multiple times, it
produces successively more quiet output (by suppressing warning
messages).
- --tests tests, --checks tests
- Perform additional tests on the documentation. For a list of
the additional tests that are available, run epydoc --help
tests.
- -v, --verbose
- Produce verbose output. If -v is used multiple times, it
produces successively more verbose output.
OTHER OPTIONS
-
- -h, --help, --usage, -?
- Display a usage message.
- -h topic, --help topic
- Display information about a specific topic. Currently,
information is available about the following topics: css,
version, and usage.
- -V, --version
- Print the version of Epydoc.
EXAMPLES
- epydoc -n epydoc -u http://epydoc.sf.net epydoc/
- Generate the HTML API documentation for the epydoc package and
all of its submodules, and write the output to the html
directory. In the headers and footers, use epydoc as the
project name, and as the project
URL.
- epydoc --pdf -n epydoc epydoc/
- Generate the LaTeX API documentation for the epydoc package and
all of its submodules, and write the output to the latex
directory.
- epydoc -o api --css blue --private-css green
sys
- Generate API documentation for the sys module, and write
the output to the api directory. Use different stylesheets
for the public and private versions of the
documentation.
HTML FILES
The HTML API documentation produced by
epydoc consists of the following files:
-
- index.html
- The standard entry point for the documentation. Normally,
index.html is a copy of the frames file
(frames.html). But if the --no-frames option is used,
then index.html is a copy of the API documentation home
page, which is normally the documentation page for the top-level
package or module (or the trees page if there is no top-level
package or module).
- module-module.html
- The API documentation for a module. module is the
complete dotted name of the module, such as sys or
epydoc.epytext.
- class-class.html
- The API documentation for a class, exception, or type.
class is the complete dotted name of the class, such as
epydoc.epytext.Token or array.ArrayType.
- trees.html
- The module and class hierarchies.
- indices.html
- The term and identifier indices.
- help.html
- The help page for the project. This page explains how to use
and navigate the webpage produced by epydoc.
- frames.html
- The main frames file. Two frames on the left side of the window
contain a table of contents, and the main frame on the right side
of the window contains API documentation pages.
- toc.html
- The top-level table of contents page. This page is displayed in
the upper-left frame of frames.html, and provides links to
the toc-everything.html and
toc-module-module.html pages.
- toc-everything.html
- The table of contents for the entire project. This page is
displayed in the lower-left frame of frames.html, and
provides links to every class, type, exception, function, and
variable defined by the project.
- toc-module-module.html
- The table of contents for a module. This page is displayed in
the lower-left frame of frames.html, and provides links to
every class, type, exception, function, and variable defined by the
module. module is the complete dotted name of the module,
such as sys or epydoc.epytext.
- epydoc.css
- The CSS stylesheet used to display all HTML pages.
By default, epydoc creates two subdirectories in the
output directory: public and private. Each directory
contains all of the files specified above. But if the
--no-private option is used, then no subdirectories are
created, and the public documentation is written directly to the
output directory.
LATEX FILES
The LaTeX API documentation produced by
epydoc consists of the following files:
-
- api.pdf
- An Adobe Acrobat (pdf) file containing the complete API
documentation. This file is only generated if you use the
--pdf option.
- api.tex
- The top-level LaTeX file. This file imports the other LaTeX
files, to create a single unified document.
- api.dvi
- A dvi file containing the complete API documentation. This file
is only generated if you use the --dvi option, the
--ps option, or the --pdf option.
- api.ps
- A postscript file containing the complete API documentation.
This file is only generated if you use the --ps option or
the --pdf option.
- module-module.tex
- The API documentation for a module. module is the
complete dotted name of the module, such as sys or
epydoc.epytext.
- class-class.tex
- The API documentation for a class, exception, or type.
class is the complete dotted name of the class, such as
epydoc.epytext.Token or array.ArrayType. These class
documentation files are only created if the
--separate-classes option is used; otherwise, the
documentation for each class is included in its module's
documentation file.
DIAGNOSTICS
Errors are divided into five categories: import
errors; epytext errors; epytext warnings; field warnings; and
inspection errors. Whenver epydoc encounters an error, it issues a
warning message that describes the error, and attempts to continue
generating documentation.
Import errors indicate that epydoc was unable to import a
module. Import errors typically prevent epydoc from generating
documentation for the module in question. Epydoc can generate the
following import errors:
-
- Bad module name module
- Epydoc attempted to import module, but module is
not a valid name for a Python module.
- Could not find a UID for link-target
- Epydoc was unable to find the object referred to by an inline
link construction (L{...}). This is usually caused by a typo
in the link.
- Could not import module
- Epydoc attempted to import module, but it failed. This
typically occurs when module raises an exception.
- file does not exist
- Epydoc attempted to import the module contained in file,
but file does not exist.
Epytext errors are caused by epytext docstrings that contain
invalid markup. Whenever an epytext error is detected, the
docstring in question is treated as a plaintext docstring. Epydoc
can generate the following epytext errors:
-
- Bad link target.
- The target specified for an inline link contruction
(L{...}) is not well-formed. Link targets must be valid
python identifiers.
- Bad uri target.
- The target specified for an inline uri contruction
(U{...}) is not well-formed. This typically occurs if inline
markup is nested inside the URI target.
- Fields must be at the top level.
- The list of fields (@param, etc.) is contained by some
other block structure (such as a list or a section).
- Fields must be the final elements.
- The list of fields (@param, etc.) is not at the end of a
docstring.
- Headings must occur at top level.
- The heading is contianed in some other block structure (such as
a list).
- Improper doctest block indentation.
- The doctest block dedents past the indentation of its initial
prompt line.
- Improper heading indentation.
- The heading for a section is not left-aligned with the
paragraphs in the section that contains it.
- Improper paragraph indentation.
- The paragraphs within a block are not left-aligned. This error
is often generated when plaintext docstrings are parsed using
epytext.
- Invalid escape.
- An unknown escape sequence was used with the inline escape
construction (E{...}).
- Lists must be indented.
- An unindented line immediately following a paragraph starts
with a list bullet. Epydoc is not sure whether you meant to start a
new list item, or meant for a paragraph to include a word that
looks like a bullet. If you intended the former, then indent the
list. If you intended the latter, then change the word-wrapping of
the paragraph, or escape the first character of the word that looks
like a bullet.
- Unbalanced '{'.
- The docstring contains unbalanced braces. Epytext requires that
all braces must be balanced. To include a single unbalanced brace,
use the escape sequences E{lb} (left brace) and E{rb} (right
brace).
- Unbalanced '}'.
- The docstring contains unbalanced braces. Epytext requires that
all braces must be balanced. To include a single unbalanced brace,
use the escape sequences E{lb} (left brace) and E{rb} (right
brace).
- Unknown inline markup tag.
- An unknown tag was used with the inline markup construction (
x{...} ).
- Wrong underline character for heading.
- The underline character used for this section heading does not
indicate an appopriate section level. The "=" character should be
used to underline sections; "-" for subsections; and "~" for
subsubsections.
Epytext warnings are caused by epytext docstrings that contain
questionable or suspicious markup. Epytext warnings do not
prevent the docstring in question from being parsed. Epydoc can
generate the following epytext warnings:
-
- Possible mal-formatted field item.
- Epytext detected a line that looks like a field item, but is
not correctly formatted. This typically occurs when the trailing
colon (":") is not included in the field tag.
- Possible heading typo.
- Epytext detected a pair of lines that looks like a heading, but
the number of underline characters does not match the number of
characters in the heading. The number of characters in these two
lines must match exactly for them to be considered a
heading.
Field warnings are caused by epytext docstrings containing
invalid fields. The contents of the invalid field are generally
ignored. Epydoc can generate the following field warnings:
-
- @param for unknown parameter param.
- A @param field was used to specify the type for a parameter
that is not included in the function's signature. This is typically
caused by a typo in the parameter name.
- tag did not expect an argument.
- The field tag tag was used with an argument, but it does
not take one.
- tag expected an argument.
- The field tag tag was used without an argument, but it
requires one.
- @type for unknown parameter param.
- A @type field was used to specify the type for a parameter that
is not included in the function's signature. This is typically
caused by a typo in the parameter name.
- @type for unknown variable var.
- A @type field was used to specify the type for a variable, but
no other information is known about the variable. This is typically
caused by a typo in the variable name.
- Unknown field tag tag.
- A docstring contains a field with the unknown tag tag.
- Redefinition of field.
- Multiple field tags define the value of field in the
same docstring, but field can only take a single
value.
Inspection errors are generated if epydoc encounters problems
while attempting to inspect the properties of a documented object.
Most of inspection errors do not prevent epydoc from documenting
the object in question. Epydoc can generate the following
inspection errors:
-
- The parameters of inhmethod do not match
basemethod.
- The parameters of the undocumented method inhmethod do
not match the parameters of the base class method basemethod
that it overrides. As a result, inhmethod does not inherit
documentation from basemethod. If the difference in
parameters is intentional, then you can eliminate the warning by
adding a (possibly empty) docstring to inhmethod.
- Docmap cannot add a type
- Epydoc attempted to document an object with an unknown type.
This error is typically generated by packages and modules that
manipulate the import mechanism, such that importing a module
produces some other type of object.
- UID conflict detected: uid
- Two different objects were assigned the same unique identifier
by epydoc. This can cause epydoc to substitute the documentation of
one object with the documentation of another object that is
assigned the same unique identifier. However, this will usually
only cause problems if the two objects with the same unique
identifiers are both modules or classes, in which case the API
documentation page for one object will overwrite the API
documentation page for the other object.
- object appears in multiple builtin modules
- While attempting to determine which module defines the builtin
object object, epydoc encountered multiple candidates, and
was unable to decide which candidate was correct. In this case,
epydoc arbitrarily chooses the first candidate that it finds.
- object appears in multiple .py modules
- While attempting to determine which module defines the builtin
object object, epydoc encountered multiple candidates, and
was unable to decide which candidate was correct. In this case,
epydoc arbitrarily chooses the first candidate that it finds.
- object appears in multiple .so modules
- While attempting to determine which module defines the builtin
object object, epydoc encountered multiple candidates, and
was unable to decide which candidate was correct. In this case,
epydoc arbitrarily chooses the first candidate that it finds.
- Could not find a module for object
- Epydoc was unable to determine which module defines
object. If object is a function, then this will
prevent epydoc from generating any documentation for object,
since it does not know what page to put the documentation on.
Otherwise, this will prevent the documentation for object
from including a link to its containing module.
EXIT STATUS
- 0
- Successful program execution.
- 1
- Usage error.
- other
- Internal error (Python exception).
AUTHOR
Epydoc was written by Edward Loper. This man page
was originally written by Moshe Zadka, and is currently maintained
by Edward Loper.
BUGS
Report bugs to <edloper@gradient.cis.upenn.edu>.
SEE ALSO
epydocgui(1)
- The epydoc webpage
- <http://epydoc.sourceforge.net>
- The epytext markup language manual
- <