@@ -11,59 +11,63 @@ History of the software
11
11
=======================
12
12
13
13
Python was created in the early 1990s by Guido van Rossum at Stichting
14
- Mathematisch Centrum (CWI, see https://www.cwi.nl/ ) in the Netherlands as a
14
+ Mathematisch Centrum (CWI, see https://www.cwi.nl) in the Netherlands as a
15
15
successor of a language called ABC. Guido remains Python's principal author,
16
16
although it includes many contributions from others.
17
17
18
18
In 1995, Guido continued his work on Python at the Corporation for National
19
- Research Initiatives (CNRI, see https://www.cnri.reston.va.us/ ) in Reston,
19
+ Research Initiatives (CNRI, see https://www.cnri.reston.va.us) in Reston,
20
20
Virginia where he released several versions of the software.
21
21
22
22
In May 2000, Guido and the Python core development team moved to BeOpen.com to
23
23
form the BeOpen PythonLabs team. In October of the same year, the PythonLabs
24
- team moved to Digital Creations (now Zope Corporation; see
25
- https://www.zope.org/) . In 2001, the Python Software Foundation (PSF, see
24
+ team moved to Digital Creations, which became
25
+ Zope Corporation . In 2001, the Python Software Foundation (PSF, see
26
26
https://www.python.org/psf/) was formed, a non-profit organization created
27
- specifically to own Python-related Intellectual Property. Zope Corporation is a
27
+ specifically to own Python-related Intellectual Property. Zope Corporation was a
28
28
sponsoring member of the PSF.
29
29
30
- All Python releases are Open Source (see https://opensource.org/ for the Open
30
+ All Python releases are Open Source (see https://opensource.org for the Open
31
31
Source Definition). Historically, most, but not all, Python releases have also
32
32
been GPL-compatible; the table below summarizes the various releases.
33
33
34
- +----------------+--------------+------------+------------+-----------------+
35
- | Release | Derived from | Year | Owner | GPL compatible? |
36
- +================+==============+============+============+=================+
37
- | 0.9.0 thru 1.2 | n/a | 1991-1995 | CWI | yes |
38
- +----------------+--------------+------------+------------+-----------------+
39
- | 1.3 thru 1.5.2 | 1.2 | 1995-1999 | CNRI | yes |
40
- +----------------+--------------+------------+------------+-----------------+
41
- | 1.6 | 1.5.2 | 2000 | CNRI | no |
42
- +----------------+--------------+------------+------------+-----------------+
43
- | 2.0 | 1.6 | 2000 | BeOpen.com | no |
44
- +----------------+--------------+------------+------------+-----------------+
45
- | 1.6.1 | 1.6 | 2001 | CNRI | no |
46
- +----------------+--------------+------------+------------+-----------------+
47
- | 2.1 | 2.0+1.6.1 | 2001 | PSF | no |
48
- +----------------+--------------+------------+------------+-----------------+
49
- | 2.0.1 | 2.0+1.6.1 | 2001 | PSF | yes |
50
- +----------------+--------------+------------+------------+-----------------+
51
- | 2.1.1 | 2.1+2.0.1 | 2001 | PSF | yes |
52
- +----------------+--------------+------------+------------+-----------------+
53
- | 2.1.2 | 2.1.1 | 2002 | PSF | yes |
54
- +----------------+--------------+------------+------------+-----------------+
55
- | 2.1.3 | 2.1.2 | 2002 | PSF | yes |
56
- +----------------+--------------+------------+------------+-----------------+
57
- | 2.2 and above | 2.1.1 | 2001-now | PSF | yes |
58
- +----------------+--------------+------------+------------+-----------------+
34
+ +----------------+--------------+------------+------------+--------------------- +
35
+ | Release | Derived from | Year | Owner | GPL- compatible? (1) |
36
+ +================+==============+============+============+===================== +
37
+ | 0.9.0 thru 1.2 | n/a | 1991-1995 | CWI | yes |
38
+ +----------------+--------------+------------+------------+--------------------- +
39
+ | 1.3 thru 1.5.2 | 1.2 | 1995-1999 | CNRI | yes |
40
+ +----------------+--------------+------------+------------+--------------------- +
41
+ | 1.6 | 1.5.2 | 2000 | CNRI | no |
42
+ +----------------+--------------+------------+------------+--------------------- +
43
+ | 2.0 | 1.6 | 2000 | BeOpen.com | no |
44
+ +----------------+--------------+------------+------------+--------------------- +
45
+ | 1.6.1 | 1.6 | 2001 | CNRI | yes (2) |
46
+ +----------------+--------------+------------+------------+--------------------- +
47
+ | 2.1 | 2.0+1.6.1 | 2001 | PSF | no |
48
+ +----------------+--------------+------------+------------+--------------------- +
49
+ | 2.0.1 | 2.0+1.6.1 | 2001 | PSF | yes |
50
+ +----------------+--------------+------------+------------+--------------------- +
51
+ | 2.1.1 | 2.1+2.0.1 | 2001 | PSF | yes |
52
+ +----------------+--------------+------------+------------+--------------------- +
53
+ | 2.1.2 | 2.1.1 | 2002 | PSF | yes |
54
+ +----------------+--------------+------------+------------+--------------------- +
55
+ | 2.1.3 | 2.1.2 | 2002 | PSF | yes |
56
+ +----------------+--------------+------------+------------+--------------------- +
57
+ | 2.2 and above | 2.1.1 | 2001-now | PSF | yes |
58
+ +----------------+--------------+------------+------------+--------------------- +
59
59
60
60
.. note ::
61
61
62
- GPL-compatible doesn't mean that we're distributing Python under the GPL. All
63
- Python licenses, unlike the GPL, let you distribute a modified version without
64
- making your changes open source. The GPL-compatible licenses make it possible to
65
- combine Python with other software that is released under the GPL; the others
66
- don't.
62
+ (1) GPL-compatible doesn't mean that we're distributing Python under the GPL.
63
+ All Python licenses, unlike the GPL, let you distribute a modified version
64
+ without making your changes open source. The GPL-compatible licenses make
65
+ it possible to combine Python with other software that is released under
66
+ the GPL; the others don't.
67
+
68
+ (2) According to Richard Stallman, 1.6.1 is not GPL-compatible, because its license
69
+ has a choice of law clause. According to CNRI, however, Stallman's lawyer has
70
+ told CNRI's lawyer that 1.6.1 is "not incompatible" with the GPL.
67
71
68
72
Thanks to the many outside volunteers who have worked under Guido's direction to
69
73
make these releases possible.
@@ -73,10 +77,10 @@ Terms and conditions for accessing or otherwise using Python
73
77
============================================================
74
78
75
79
Python software and documentation are licensed under the
76
- :ref: ` PSF License Agreement < PSF-license >` .
80
+ Python Software Foundation License Version 2 .
77
81
78
82
Starting with Python 3.8.6, examples, recipes, and other code in
79
- the documentation are dual licensed under the PSF License Agreement
83
+ the documentation are dual licensed under the PSF License Version 2
80
84
and the :ref: `Zero-Clause BSD license <BSD0 >`.
81
85
82
86
Some software incorporated into Python is under different licenses.
@@ -86,39 +90,38 @@ See :ref:`OtherLicenses` for an incomplete list of these licenses.
86
90
87
91
.. _PSF-license :
88
92
89
- PSF LICENSE AGREEMENT FOR PYTHON | release |
90
- ------------------------------------------
93
+ PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
94
+ --------------------------------------------
91
95
92
96
.. parsed-literal ::
93
97
94
98
1. This LICENSE AGREEMENT is between the Python Software Foundation ("PSF"), and
95
- the Individual or Organization ("Licensee") accessing and otherwise using Python
96
- | release | software in source or binary form and its associated documentation.
99
+ the Individual or Organization ("Licensee") accessing and otherwise using this
100
+ software ("Python") in source or binary form and its associated documentation.
97
101
98
102
2. Subject to the terms and conditions of this License Agreement, PSF hereby
99
103
grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
100
104
analyze, test, perform and/or display publicly, prepare derivative works,
101
- distribute, and otherwise use Python | release | alone or in any derivative
105
+ distribute, and otherwise use Python alone or in any derivative
102
106
version, provided, however, that PSF's License Agreement and PSF's notice of
103
107
copyright, i.e., "Copyright © 2001 Python Software Foundation; All Rights
104
- Reserved" are retained in Python | release | alone or in any derivative version
108
+ Reserved" are retained in Python alone or in any derivative version
105
109
prepared by Licensee.
106
110
107
111
3. In the event Licensee prepares a derivative work that is based on or
108
- incorporates Python | release | or any part thereof, and wants to make the
112
+ incorporates Python or any part thereof, and wants to make the
109
113
derivative work available to others as provided herein, then Licensee hereby
110
- agrees to include in any such work a brief summary of the changes made to Python
111
- |release |.
114
+ agrees to include in any such work a brief summary of the changes made to Python.
112
115
113
- 4. PSF is making Python | release | available to Licensee on an "AS IS" basis.
116
+ 4. PSF is making Python available to Licensee on an "AS IS" basis.
114
117
PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF
115
118
EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND DISCLAIMS ANY REPRESENTATION OR
116
119
WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE
117
- USE OF PYTHON | release | WILL NOT INFRINGE ANY THIRD PARTY RIGHTS.
120
+ USE OF PYTHON WILL NOT INFRINGE ANY THIRD PARTY RIGHTS.
118
121
119
- 5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON | release |
122
+ 5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
120
123
FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF
121
- MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON | release | , OR ANY DERIVATIVE
124
+ MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON, OR ANY DERIVATIVE
122
125
THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
123
126
124
127
6. This License Agreement will automatically terminate upon a material breach of
@@ -130,7 +133,7 @@ PSF LICENSE AGREEMENT FOR PYTHON |release|
130
133
trademark sense to endorse or promote products or services of Licensee, or any
131
134
third party.
132
135
133
- 8. By copying, installing or otherwise using Python | release | , Licensee agrees
136
+ 8. By copying, installing or otherwise using Python, Licensee agrees
134
137
to be bound by the terms and conditions of this License Agreement.
135
138
136
139
@@ -205,7 +208,7 @@ CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
205
208
Agreement. This Agreement together with Python 1.6.1 may be located on the
206
209
internet using the following unique, persistent identifier (known as a handle):
207
210
1895.22/1013. This Agreement may also be obtained from a proxy server on the
208
- internet using the following URL: http://hdl.handle.net/1895.22/1013."
211
+ internet using the following URL: http://hdl.handle.net/1895.22/1013".
209
212
210
213
3. In the event Licensee prepares a derivative work that is based on or
211
214
incorporates Python 1.6.1 or any part thereof, and wants to make the derivative
@@ -273,7 +276,7 @@ CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2
273
276
274
277
.. _BSD0 :
275
278
276
- ZERO-CLAUSE BSD LICENSE FOR CODE IN THE PYTHON | release | DOCUMENTATION
279
+ ZERO-CLAUSE BSD LICENSE FOR CODE IN THE PYTHON DOCUMENTATION
277
280
----------------------------------------------------------------------
278
281
279
282
.. parsed-literal ::
0 commit comments