forked from python/peps
-
Notifications
You must be signed in to change notification settings - Fork 2
/
pep-0241.txt
265 lines (181 loc) · 7.1 KB
/
pep-0241.txt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
PEP: 241
Title: Metadata for Python Software Packages
Version: $Revision$
Last-Modified: $Date$
Author: A.M. Kuchling <[email protected]>
Status: Final
Type: Standards Track
Content-Type: text/x-rst
Created: 12-Mar-2001
Post-History: 19-Mar-2001
Introduction
============
This PEP describes a mechanism for adding metadata to Python
packages. It includes specifics of the field names, and their
semantics and usage.
Including Metadata in Packages
==============================
The Distutils 'sdist' command will be modified to extract the
metadata fields from the arguments and write them to a file in the
generated zipfile or tarball. This file will be named PKG-INFO
and will be placed in the top directory of the source
distribution (where the README, INSTALL, and other files usually
go).
Developers may not provide their own PKG-INFO file. The "sdist"
command will, if it detects an existing PKG-INFO file, terminate
with an appropriate error message. This should prevent confusion
caused by the PKG-INFO and setup.py files being out of sync.
The PKG-INFO file format is a single set of RFC-822 headers
parseable by the rfc822.py module. The field names listed in the
following section are used as the header names. There's no
extension mechanism in this simple format; the Catalog and Distutils
SIGs will aim at getting a more flexible format ready for Python 2.2.
Fields
======
This section specifies the names and semantics of each of the
supported metadata fields.
Fields marked with "(Multiple use)" may be specified multiple
times in a single PKG-INFO file. Other fields may only occur
once in a PKG-INFO file. Fields marked with "(optional)" are
not required to appear in a valid PKG-INFO file, all other
fields must be present.
Metadata-Version
----------------
Version of the file format; currently "1.0" is the only
legal value here.
Example::
Metadata-Version: 1.0
Name
----
The name of the package.
Example::
Name: BeagleVote
Version
-------
A string containing the package's version number. This
field should be parseable by one of the Version classes
(StrictVersion or LooseVersion) in the distutils.version
module.
Example::
Version: 1.0a2
Platform (multiple use)
-----------------------
A comma-separated list of platform specifications, summarizing
the operating systems supported by the package. The major
supported platforms are listed below, but this list is
necessarily incomplete.
::
POSIX, MacOS, Windows, BeOS, PalmOS.
Binary distributions will use the Supported-Platform field in
their metadata to specify the OS and CPU for which the binary
package was compiled. The semantics of the Supported-Platform
are not specified in this PEP.
Example::
Platform: POSIX, Windows
Summary
-------
A one-line summary of what the package does.
Example::
Summary: A module for collecting votes from beagles.
Description (optional)
----------------------
A longer description of the package that can run to several
paragraphs. (Software that deals with metadata should not
assume any maximum size for this field, though one hopes that
people won't include their instruction manual as the
long-description.)
Example::
Description: This module collects votes from beagles
in order to determine their electoral wishes.
Do NOT try to use this module with basset hounds;
it makes them grumpy.
Keywords (optional)
-------------------
A list of additional keywords to be used to assist searching
for the package in a larger catalog.
Example::
Keywords: dog puppy voting election
Home-page (optional)
--------------------
A string containing the URL for the package's home page.
Example::
Home-page: http://www.example.com/~cschultz/bvote/
Author (optional)
-----------------
A string containing at a minimum the author's name. Contact
information can also be added, separating each line with
newlines.
Example::
Author: C. Schultz
Universal Features Syndicate
Los Angeles, CA
Author-email
------------
A string containing the author's e-mail address. It can contain
a name and e-mail address in the legal forms for a RFC-822
'From:' header. It's not optional because cataloging systems
can use the e-mail portion of this field as a unique key
representing the author. A catalog might provide authors the
ability to store their GPG key, personal home page, and other
additional metadata *about the author*, and optionally the
ability to associate several e-mail addresses with the same
person. Author-related metadata fields are not covered by this
PEP.
Example::
Author-email: "C. Schultz" <[email protected]>
License
-------
A string selected from a short list of choices, specifying the
license covering the package. Some licenses result in the
software being freely redistributable, so packagers and
resellers can automatically know that they're free to
redistribute the software. Other licenses will require
a careful reading by a human to determine how the software can be
repackaged and resold.
The choices are::
Artistic, BSD, DFSG, GNU GPL, GNU LGPL, "MIT",
Mozilla PL, "public domain", Python, Qt PL, Zope PL, unknown,
nocommercial, nosell, nosource, shareware, other
Definitions of some of the licenses are:
============= ===================================================
DFSG The license conforms to the Debian Free Software
Guidelines, but does not use one of the other
DFSG conforming licenses listed here.
More information is available at:
http://www.debian.org/social_contract#guidelines
Python Python 1.6 or higher license. Version 1.5.2 and
earlier are under the MIT license.
public domain Software is public domain, not copyrighted.
unknown Status is not known
nocommercial Free private use but commercial use not permitted
nosell Free use but distribution for profit by arrangement
nosource Freely distributable but no source code
shareware Payment is requested if software is used
other General category for other non-DFSG licenses
============= ===================================================
Some of these licenses can be interpreted to mean the software is
freely redistributable. The list of redistributable licenses is::
Artistic, BSD, DFSG, GNU GPL, GNU LGPL, "MIT",
Mozilla PL, "public domain", Python, Qt PL, Zope PL,
nosource, shareware
Note that being redistributable does not mean a package
qualifies as free software, 'nosource' and 'shareware' being
examples.
Example::
License: MIT
Acknowledgements
================
Many changes and rewrites to this document were suggested by the
readers of the Distutils SIG. In particular, Sean Reifschneider
often contributed actual text for inclusion in this PEP.
The list of licenses was compiled using the SourceForge license
list and the CTAN license list compiled by Graham Williams; Carey
Evans also offered several useful suggestions on this list.
Copyright
=========
This document has been placed in the public domain.
..
Local Variables:
mode: indented-text
indent-tabs-mode: nil
End: