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1 A. HISTORY OF THE SOFTWARE |
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2 ========================== |
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3 |
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4 Python was created in the early 1990s by Guido van Rossum at Stichting |
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5 Mathematisch Centrum (CWI, see http://www.cwi.nl) in the Netherlands |
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6 as a successor of a language called ABC. Guido remains Python's |
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7 principal author, although it includes many contributions from others. |
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8 |
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9 In 1995, Guido continued his work on Python at the Corporation for |
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10 National Research Initiatives (CNRI, see http://www.cnri.reston.va.us) |
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11 in Reston, Virginia where he released several versions of the |
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12 software. |
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13 |
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14 In May 2000, Guido and the Python core development team moved to |
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15 BeOpen.com to form the BeOpen PythonLabs team. In October of the same |
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16 year, the PythonLabs team moved to Digital Creations (now Zope |
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17 Corporation, see http://www.zope.com). In 2001, the Python Software |
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18 Foundation (PSF, see http://www.python.org/psf/) was formed, a |
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19 non-profit organization created specifically to own Python-related |
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20 Intellectual Property. Zope Corporation is a sponsoring member of |
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21 the PSF. |
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22 |
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23 All Python releases are Open Source (see http://www.opensource.org for |
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24 the Open Source Definition). Historically, most, but not all, Python |
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25 releases have also been GPL-compatible; the table below summarizes |
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26 the various releases. |
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27 |
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28 Release Derived Year Owner GPL- |
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29 from compatible? (1) |
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30 |
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31 0.9.0 thru 1.2 1991-1995 CWI yes |
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32 1.3 thru 1.5.2 1.2 1995-1999 CNRI yes |
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33 1.6 1.5.2 2000 CNRI no |
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34 2.0 1.6 2000 BeOpen.com no |
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35 1.6.1 1.6 2001 CNRI yes (2) |
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36 2.1 2.0+1.6.1 2001 PSF no |
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37 2.0.1 2.0+1.6.1 2001 PSF yes |
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38 2.1.1 2.1+2.0.1 2001 PSF yes |
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39 2.2 2.1.1 2001 PSF yes |
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40 2.1.2 2.1.1 2002 PSF yes |
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41 2.1.3 2.1.2 2002 PSF yes |
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42 2.2.1 2.2 2002 PSF yes |
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43 2.2.2 2.2.1 2002 PSF yes |
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44 2.2.3 2.2.2 2003 PSF yes |
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45 2.3 2.2.2 2002-2003 PSF yes |
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46 2.3.1 2.3 2002-2003 PSF yes |
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47 2.3.2 2.3.1 2002-2003 PSF yes |
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48 2.3.3 2.3.2 2002-2003 PSF yes |
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49 2.3.4 2.3.3 2004 PSF yes |
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50 2.3.5 2.3.4 2005 PSF yes |
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51 2.4 2.3 2004 PSF yes |
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52 2.4.1 2.4 2005 PSF yes |
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53 2.4.2 2.4.1 2005 PSF yes |
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54 2.4.3 2.4.2 2006 PSF yes |
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55 2.4.4 2.4.3 2006 PSF yes |
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56 2.5 2.4 2006 PSF yes |
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57 2.5.1 2.5 2007 PSF yes |
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58 2.5.2 2.5.1 2008 PSF yes |
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59 2.5.3 2.5.2 2008 PSF yes |
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60 2.6 2.5 2008 PSF yes |
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61 2.6.1 2.6 2008 PSF yes |
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62 2.6.2 2.6.1 2009 PSF yes |
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63 2.6.3 2.6.2 2009 PSF yes |
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64 2.6.4 2.6.3 2009 PSF yes |
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65 2.6.5 2.6.4 2010 PSF yes |
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66 2.7 2.6 2010 PSF yes |
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67 |
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68 Footnotes: |
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69 |
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70 (1) GPL-compatible doesn't mean that we're distributing Python under |
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71 the GPL. All Python licenses, unlike the GPL, let you distribute |
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72 a modified version without making your changes open source. The |
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73 GPL-compatible licenses make it possible to combine Python with |
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74 other software that is released under the GPL; the others don't. |
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75 |
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76 (2) According to Richard Stallman, 1.6.1 is not GPL-compatible, |
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77 because its license has a choice of law clause. According to |
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78 CNRI, however, Stallman's lawyer has told CNRI's lawyer that 1.6.1 |
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79 is "not incompatible" with the GPL. |
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80 |
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81 Thanks to the many outside volunteers who have worked under Guido's |
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82 direction to make these releases possible. |
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83 |
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84 |
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85 B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON |
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86 =============================================================== |
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87 |
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88 PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2 |
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89 -------------------------------------------- |
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90 |
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91 1. This LICENSE AGREEMENT is between the Python Software Foundation |
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92 ("PSF"), and the Individual or Organization ("Licensee") accessing and |
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93 otherwise using this software ("Python") in source or binary form and |
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94 its associated documentation. |
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95 |
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96 2. Subject to the terms and conditions of this License Agreement, PSF hereby |
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97 grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce, |
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98 analyze, test, perform and/or display publicly, prepare derivative works, |
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99 distribute, and otherwise use Python alone or in any derivative version, |
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100 provided, however, that PSF's License Agreement and PSF's notice of copyright, |
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101 i.e., "Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
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102 Python Software Foundation; All Rights Reserved" are retained in Python alone or |
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103 in any derivative version prepared by Licensee. |
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104 |
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105 3. In the event Licensee prepares a derivative work that is based on |
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106 or incorporates Python or any part thereof, and wants to make |
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107 the derivative work available to others as provided herein, then |
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108 Licensee hereby agrees to include in any such work a brief summary of |
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109 the changes made to Python. |
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110 |
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111 4. PSF is making Python available to Licensee on an "AS IS" |
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112 basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR |
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113 IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND |
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114 DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS |
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115 FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT |
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116 INFRINGE ANY THIRD PARTY RIGHTS. |
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117 |
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118 5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON |
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119 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS |
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120 A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON, |
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121 OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. |
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122 |
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123 6. This License Agreement will automatically terminate upon a material |
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124 breach of its terms and conditions. |
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125 |
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126 7. Nothing in this License Agreement shall be deemed to create any |
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127 relationship of agency, partnership, or joint venture between PSF and |
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128 Licensee. This License Agreement does not grant permission to use PSF |
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129 trademarks or trade name in a trademark sense to endorse or promote |
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130 products or services of Licensee, or any third party. |
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131 |
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132 8. By copying, installing or otherwise using Python, Licensee |
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133 agrees to be bound by the terms and conditions of this License |
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134 Agreement. |
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135 |
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136 |
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137 BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0 |
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138 ------------------------------------------- |
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139 |
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140 BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1 |
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141 |
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142 1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an |
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143 office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the |
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144 Individual or Organization ("Licensee") accessing and otherwise using |
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145 this software in source or binary form and its associated |
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146 documentation ("the Software"). |
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147 |
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148 2. Subject to the terms and conditions of this BeOpen Python License |
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149 Agreement, BeOpen hereby grants Licensee a non-exclusive, |
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150 royalty-free, world-wide license to reproduce, analyze, test, perform |
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151 and/or display publicly, prepare derivative works, distribute, and |
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152 otherwise use the Software alone or in any derivative version, |
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153 provided, however, that the BeOpen Python License is retained in the |
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154 Software, alone or in any derivative version prepared by Licensee. |
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155 |
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156 3. BeOpen is making the Software available to Licensee on an "AS IS" |
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157 basis. BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR |
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158 IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND |
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159 DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS |
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160 FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT |
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161 INFRINGE ANY THIRD PARTY RIGHTS. |
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162 |
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163 4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE |
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164 SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS |
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165 AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY |
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166 DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. |
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167 |
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168 5. This License Agreement will automatically terminate upon a material |
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169 breach of its terms and conditions. |
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170 |
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171 6. This License Agreement shall be governed by and interpreted in all |
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172 respects by the law of the State of California, excluding conflict of |
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173 law provisions. Nothing in this License Agreement shall be deemed to |
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174 create any relationship of agency, partnership, or joint venture |
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175 between BeOpen and Licensee. This License Agreement does not grant |
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176 permission to use BeOpen trademarks or trade names in a trademark |
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177 sense to endorse or promote products or services of Licensee, or any |
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178 third party. As an exception, the "BeOpen Python" logos available at |
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179 http://www.pythonlabs.com/logos.html may be used according to the |
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180 permissions granted on that web page. |
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181 |
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182 7. By copying, installing or otherwise using the software, Licensee |
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183 agrees to be bound by the terms and conditions of this License |
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184 Agreement. |
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185 |
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186 |
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187 CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1 |
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188 --------------------------------------- |
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189 |
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190 1. This LICENSE AGREEMENT is between the Corporation for National |
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191 Research Initiatives, having an office at 1895 Preston White Drive, |
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192 Reston, VA 20191 ("CNRI"), and the Individual or Organization |
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193 ("Licensee") accessing and otherwise using Python 1.6.1 software in |
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194 source or binary form and its associated documentation. |
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195 |
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196 2. Subject to the terms and conditions of this License Agreement, CNRI |
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197 hereby grants Licensee a nonexclusive, royalty-free, world-wide |
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198 license to reproduce, analyze, test, perform and/or display publicly, |
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199 prepare derivative works, distribute, and otherwise use Python 1.6.1 |
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200 alone or in any derivative version, provided, however, that CNRI's |
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201 License Agreement and CNRI's notice of copyright, i.e., "Copyright (c) |
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202 1995-2001 Corporation for National Research Initiatives; All Rights |
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203 Reserved" are retained in Python 1.6.1 alone or in any derivative |
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204 version prepared by Licensee. Alternately, in lieu of CNRI's License |
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205 Agreement, Licensee may substitute the following text (omitting the |
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206 quotes): "Python 1.6.1 is made available subject to the terms and |
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207 conditions in CNRI's License Agreement. This Agreement together with |
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208 Python 1.6.1 may be located on the Internet using the following |
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209 unique, persistent identifier (known as a handle): 1895.22/1013. This |
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210 Agreement may also be obtained from a proxy server on the Internet |
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211 using the following URL: http://hdl.handle.net/1895.22/1013". |
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212 |
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213 3. In the event Licensee prepares a derivative work that is based on |
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214 or incorporates Python 1.6.1 or any part thereof, and wants to make |
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215 the derivative work available to others as provided herein, then |
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216 Licensee hereby agrees to include in any such work a brief summary of |
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217 the changes made to Python 1.6.1. |
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218 |
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219 4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS" |
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220 basis. CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR |
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221 IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND |
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222 DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS |
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223 FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT |
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224 INFRINGE ANY THIRD PARTY RIGHTS. |
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225 |
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226 5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON |
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227 1.6.1 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS |
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228 A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1, |
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229 OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. |
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230 |
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231 6. This License Agreement will automatically terminate upon a material |
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232 breach of its terms and conditions. |
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233 |
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234 7. This License Agreement shall be governed by the federal |
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235 intellectual property law of the United States, including without |
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236 limitation the federal copyright law, and, to the extent such |
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237 U.S. federal law does not apply, by the law of the Commonwealth of |
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238 Virginia, excluding Virginia's conflict of law provisions. |
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239 Notwithstanding the foregoing, with regard to derivative works based |
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240 on Python 1.6.1 that incorporate non-separable material that was |
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241 previously distributed under the GNU General Public License (GPL), the |
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242 law of the Commonwealth of Virginia shall govern this License |
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243 Agreement only as to issues arising under or with respect to |
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244 Paragraphs 4, 5, and 7 of this License Agreement. Nothing in this |
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245 License Agreement shall be deemed to create any relationship of |
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246 agency, partnership, or joint venture between CNRI and Licensee. This |
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247 License Agreement does not grant permission to use CNRI trademarks or |
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248 trade name in a trademark sense to endorse or promote products or |
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249 services of Licensee, or any third party. |
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250 |
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251 8. By clicking on the "ACCEPT" button where indicated, or by copying, |
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252 installing or otherwise using Python 1.6.1, Licensee agrees to be |
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253 bound by the terms and conditions of this License Agreement. |
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254 |
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255 ACCEPT |
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256 |
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257 |
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258 CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2 |
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259 -------------------------------------------------- |
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260 |
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261 Copyright (c) 1991 - 1995, Stichting Mathematisch Centrum Amsterdam, |
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262 The Netherlands. All rights reserved. |
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263 |
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264 Permission to use, copy, modify, and distribute this software and its |
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265 documentation for any purpose and without fee is hereby granted, |
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266 provided that the above copyright notice appear in all copies and that |
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267 both that copyright notice and this permission notice appear in |
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268 supporting documentation, and that the name of Stichting Mathematisch |
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269 Centrum or CWI not be used in advertising or publicity pertaining to |
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270 distribution of the software without specific, written prior |
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271 permission. |
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272 |
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273 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO |
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274 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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275 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE |
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276 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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277 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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278 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
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279 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |