Python License 2.0.1

Also known as Python License 2.0.1, Python Software Foundation License Version 2, Python-2.0.1.

Commercial use: allowed
Share alike: not required
Attribution: required (keep the copyright and license notices)

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Write this as a license text (needs an account) DALICC reads the model above and writes what it permits, requires and prohibits in plain English. Without an account, the Text download above writes the model out from the vocabulary.

Canonical URI https://dalicc.net/licenselibrary/Python-2.0.1

Permissions

Change license by library convention
Duties
- Use a compliant license by library convention
Charge distribution fee from the text
Commercial use from the text
Derivative works from the text
Derive from the text
Duties
- Attribution from the text
- Modification notice from the text
- Notice from the text
Display from the text
Distribute from the text
Duties
- Attribution from the text
- Notice from the text
Modified works from the text
Modify from the text
Duties
- Attribution from the text
- Modification notice from the text
- Notice from the text
No-warranty notice from the text
Present from the text
Reproduce from the text

Prohibitions

Promote from the text

License-wide duties

This license states no duties that apply to the work as a whole.

What applies by default

The statements above are the library's reading of this license: each is marked with the sentence it rests on, or as a library convention where the text is not explicit. The statements below are the ones the DALICC reasoner supplies for acts the license says nothing about, from the default rules of the dependency graph it reasons with. Each one names the legal source it rests on. None of it is in the record.

No default rule of that graph reaches this license: it speaks about every act the rules are about.

Further terms

These are the things the license says about itself beyond the acts it permits, forbids and requires: when it ends, how long there is to put a breach right, which law governs it, and so on. A term that comes from the DALICC vocabulary links to its definition.

Composed of: CNRI-Python-GPL-Compatible
Terminates on breach: Yes

Clauses

Warranty disclaimer

PSF is making Python available to Licensee on an "AS IS" basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT INFRINGE ANY THIRD PARTY RIGHTS.

Limitation of liability

PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON, OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.

Additional clauses

6. This License Agreement will automatically terminate upon a material breach of its terms and conditions. 7. Nothing in this License Agreement shall be deemed to create any relationship of agency, partnership, or joint venture between PSF and Licensee. This License Agreement does not grant permission to use PSF trademarks or trade name in a trademark sense to endorse or promote products or services of Licensee, or any third party. 6. This License Agreement shall be governed by and interpreted in all respects by the law of the State of California, excluding conflict of law provisions. Nothing in this License Agreement shall be deemed to create any relationship of agency, partnership, or joint venture between BeOpen and Licensee. This License Agreement does not grant permission to use BeOpen trademarks or trade names in a trademark sense to endorse or promote products or services of Licensee, or any third party. As an exception, the "BeOpen Python" logos available at http://www.pythonlabs.com/logos.html may be used according to the permissions granted on that web page. 7. This License Agreement shall be governed by the federal intellectual property law of the United States, including without limitation the federal copyright law, and, to the extent such U.S. federal law does not apply, by the law of the Commonwealth of Virginia, excluding Virginia's conflict of law provisions. Notwithstanding the foregoing, with regard to derivative works based on Python 1.6.1 that incorporate non-separable material that was previously distributed under the GNU General Public License (GPL), the law of the Commonwealth of Virginia shall govern this License Agreement only as to issues arising under or with respect to Paragraphs 4, 5, and 7 of this License Agreement. Nothing in this License Agreement shall be deemed to create any relationship of agency, partnership, or joint venture between CNRI and Licensee. This License Agreement does not grant permission to use CNRI trademarks or trade name in a trademark sense to endorse or promote products or services of Licensee, or any third party. Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Stichting Mathematisch Centrum or CWI not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission.

Info

Target asset types: Software
Region / jurisdiction: Worldwide
Validity: Perpetual
Source: https://spdx.org/licenses/Python-2.0.1.html
Legal code: https://www.python.org/download/releases/2.0.1/license/
This description is published under: Creative Commons Attribution 4.0 International
Publisher: Python Software Foundation
Attribution name: Python Software Foundation
SPDX identifier: Python-2.0.1 on the SPDX license list
DALICC identifier: Python-2.0.1

This record is published under CC BY 4.0. Credit it as: DALICC License Library, DALICC - Verein zur Förderung der Rechtssicherheit in der Datenbewirtschaftung, https://dalicc.net, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). The license it describes belongs to its publisher.

Use this license

Everything below is generated from this record. Replace the example address with the address of your own work.

JSON sidecar

{
  "license-uri": "https://dalicc.net/licenselibrary/Python-2.0.1",
  "license-title": "Python License 2.0.1",
  "spdx-id": "Python-2.0.1",
  "attribution": "Copyright (c) [year] [copyright holder]",
  "asset": null,
  "generated-by": "DALICC"
}

RDF, Turtle

@prefix cc: <http://creativecommons.org/ns#> .

<https://example.org/my-work>
    cc:license <https://dalicc.net/licenselibrary/Python-2.0.1> .

RDF, JSON-LD

{
  "@context": {
    "cc": "http://creativecommons.org/ns#"
  },
  "@id": "https://example.org/my-work",
  "cc:license": {
    "@id": "https://dalicc.net/licenselibrary/Python-2.0.1"
  }
}

HTML attribution

<p>This work is licensed under <a href="https://dalicc.net/licenselibrary/Python-2.0.1" rel="license">Python License 2.0.1</a>.</p>

This license asks for attribution, so the credit line is part of it.

Badge

Markdown

[![License: Python License 2.0.1](https://dalicc.net/license-library/Python-2.0.1/badge.svg)](https://dalicc.net/license-library/Python-2.0.1)

HTML

<a href="https://dalicc.net/license-library/Python-2.0.1"><img src="https://dalicc.net/license-library/Python-2.0.1/badge.svg" alt="License: Python License 2.0.1"></a>

Review

Written from the license text by: Giray Havur
Written on: 2026-09-15
Second review: not yet done
Record changed since this review: yes (version 2, 2026-09-24)
Findings: 9 recorded, 7 applied to the record, 0 proposed

Models the Python 2.0.1 licence, that is the Python Software Foundation License Version 2 stacked on the BeOpen, CNRI and CWI agreements that the history of the interpreter drags along. The operative terms are those of the PSF agreement, so the record follows PythonLicense20. Nothing here is legal advice.

9 findings

major Rubric 3 odrl:permission applied

PSF clause 2 grants "a nonexclusive, royalty-free, world-wide license to reproduce, analyze, test, perform and/or display publicly, prepare derivative works, distribute, and otherwise use Python alone or in any derivative version". The record therefore permits reproduce, distribute, modify, derive, display, present, commercial use, derivative works, modified works and, since no text in the stack says otherwise, the distribution fee.
major Rubric 4 odrl:prohibition applied

PSF clause 7 states "This License Agreement does not grant permission to use PSF trademarks or trade name in a trademark sense to endorse or promote products or services of Licensee, or any third party", and the BeOpen and CNRI sections repeat it for their own marks, so dalicc:promote is a prohibition. dalicc:ChangeLicense is prohibited because no agreement in the stack grants a right to relicense. (Corrected on 2026-09-15 by the verification of this review group: see the rubric 3 finding on relicensing below.)
major Rubric 5 odrl:duty applied

PSF clause 2 conditions the grant on "PSF's License Agreement and PSF's notice of copyright ... are retained in Python alone or in any derivative version prepared by Licensee", which is cc:Attribution and cc:Notice, and clause 3 requires "a brief summary of the changes made to Python", which is dalicc:modificationNotice on odrl:modify and odrl:derive. The same duties satisfy the BeOpen, CNRI and CWI sections, so they are not repeated.
major Rubric 6 dalicc:additionalClauses applied

PSF clauses 4 and 5 are quoted word for word in their own predicates. dalicc:additionalClauses carries PSF clauses 6 and 7, the BeOpen choice of California law with its logo exception, the CNRI choice of federal and Virginia law with its GPL carve-out, and the CWI permission notice, so that a reader can see the whole stack.
major Rubric 7 cc:jurisdiction applied

Three different choice-of-law clauses appear in one file: none for the PSF agreement itself, California for BeOpen and federal or Virginia law for CNRI. No single legal system governs, so cc:jurisdiction is dalicc:worldwide and all three clauses are quoted.
gap Rubric 8 dalicc:additionalClauses none

Two gaps. Automatic termination on breach has no property (proposed dalicc:terminatesOnBreach). A licence that is a stack of agreements, each of which must be complied with, has no term either; proposed dalicc:composedOf, an object property from a record to the records of the agreements it stacks, which would let the Python 2.0.1 record point at CNRI-Python-GPL-Compatible.
info Rubric 9 record none

The consistency check of app.services.composer with the dependency graph dg_default returned an empty conflict list.
major Rubric 10 record applied

Follows licensedata/licenses/PythonLicense20.ttl. Two deliberate differences: this record adds cc:Attribution to odrl:distribute (the PSF clause requires the copyright notice as well as the agreement to be retained) and it does not repeat that record's prohibitions of odrl:grantUse, cc:ShareAlike, dalicc:addLimitation, dalicc:addStatement and dalicc:chargeDistributionFee, none of which the PSF text states. The existing record was not edited.
major Rubric 3 odrl:permission applied

Library convention 15: a licence that asks for no reciprocity and no source code asks only that the notice travels with the copy, which is a duty on the acts it governs and not a bar on putting the copy under other terms. dalicc:ChangeLicense is therefore a permission here, and the prohibition the earlier reading wrote is removed. The text reads: "Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Stichting Mathematisch Centrum or CWI not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission." The permission carries the dalicc:compliantLicense duty, as Apache-2.0 does, because the notice has to survive the relicensing.

Report an issue The review record as JSON The review checks the model against the license text. It is not legal advice.

History

This license model has 2 versions. Version 2 is the one served today; every earlier version keeps its own address, so a conclusion drawn from one of them can still be checked against it.

Version 2 current2026-09-24 Giray Havur

The changes since version 1 recorded which sentence of the text each statement rests on, named the license the record itself is published under and removed the quotes that do not name the act they support.

View version 2 JSON-LD Turtle RDF/XML
9 changes
- changed permission dalicc:ChangeLicense with duties [dalicc:compliantLicense]
  
  was permission dalicc:ChangeLicense with duties [dalicc:compliantLicense]
  
  Manual edit The statement is marked as a library convention, family rule 15: Permissive records permit relicensing: the text does not state it in as many words. Its duty dalicc:compliantLicense is marked as a library convention, family rule 15: Permissive records permit relicensing.
- changed permission odrl:derive with duties [cc:Attribution, cc:Notice, dalicc:modificationNotice]
  
  was permission odrl:derive with duties [cc:Attribution, cc:Notice, dalicc:modificationNotice]
  
  Manual edit Its duty cc:Attribution quotes "PSF's License Agreement and PSF's notice of copyright ... are retained in Python alone or in any derivative version prepared by Licensee" Its duty cc:Notice quotes "In the event Licensee prepares a derivative work that is based on or incorporates Python 2.0.1 or any part thereof, and wants to make the derivative work available to others as provided herein, then Licensee hereby agrees to include in any such work a brief summary of the changes made to Python 2.0.1."
- changed permission odrl:distribute with duties [cc:Attribution, cc:Notice]
  
  was permission odrl:distribute with duties [cc:Attribution, cc:Notice]
  
  Manual edit Its duty cc:Attribution quotes "PSF's License Agreement and PSF's notice of copyright ... are retained in Python alone or in any derivative version prepared by Licensee" Its duty cc:Notice quotes "In the event Licensee prepares a derivative work that is based on or incorporates Python 2.0.1 or any part thereof, and wants to make the derivative work available to others as provided herein, then Licensee hereby agrees to include in any such work a brief summary of the changes made to Python 2.0.1."
- changed permission odrl:modify with duties [cc:Attribution, cc:Notice, dalicc:modificationNotice]
  
  was permission odrl:modify with duties [cc:Attribution, cc:Notice, dalicc:modificationNotice]
  
  Manual edit Its duty cc:Attribution quotes "PSF's License Agreement and PSF's notice of copyright ... are retained in Python alone or in any derivative version prepared by Licensee" Its duty cc:Notice quotes "In the event Licensee prepares a derivative work that is based on or incorporates Python 2.0.1 or any part thereof, and wants to make the derivative work available to others as provided herein, then Licensee hereby agrees to include in any such work a brief summary of the changes made to Python 2.0.1."
- changed prohibition dalicc:promote
  
  was prohibition dalicc:promote
  
  Manual edit The statement now quotes the sentence of the licence text it rests on: "This License Agreement does not grant permission to use PSF trademarks or trade name in a trademark sense to endorse or promote products or services of Licensee, or any third party."
- added dct:license <https://creativecommons.org/licenses/by/4.0/>
  
  Manual edit Every record is published under CC BY 4.0. cc:license names the record DALICC keeps of that licence; dct:license now names it by the address Creative Commons publishes it at, so that a consumer matching the canonical IRI finds it.
- changed permission odrl:derive with duties [cc:Attribution, cc:Notice, dalicc:modificationNotice]
  
  was permission odrl:derive with duties [cc:Attribution, cc:Notice, dalicc:modificationNotice]
  
  Manual edit Removed the quoted evidence of duty cc:Attribution on odrl:derive, duty cc:Attribution on odrl:distribute, duty cc:Attribution on odrl:modify, duty cc:Notice on odrl:derive, duty cc:Notice on odrl:distribute, duty cc:Notice on odrl:modify: the quoted sentence does not name the act. The statements stay, read from the text without a linked quote.
- changed permission odrl:distribute with duties [cc:Attribution, cc:Notice]
  
  was permission odrl:distribute with duties [cc:Attribution, cc:Notice]
  
  Manual edit Removed the quoted evidence of duty cc:Attribution on odrl:derive, duty cc:Attribution on odrl:distribute, duty cc:Attribution on odrl:modify, duty cc:Notice on odrl:derive, duty cc:Notice on odrl:distribute, duty cc:Notice on odrl:modify: the quoted sentence does not name the act. The statements stay, read from the text without a linked quote.
- changed permission odrl:modify with duties [cc:Attribution, cc:Notice, dalicc:modificationNotice]
  
  was permission odrl:modify with duties [cc:Attribution, cc:Notice, dalicc:modificationNotice]
  
  Manual edit Removed the quoted evidence of duty cc:Attribution on odrl:derive, duty cc:Attribution on odrl:distribute, duty cc:Attribution on odrl:modify, duty cc:Notice on odrl:derive, duty cc:Notice on odrl:distribute, duty cc:Notice on odrl:modify: the quoted sentence does not name the act. The statements stay, read from the text without a linked quote.
Version 1

Created from the license text on 2026-09-15 (Python, PHP, Unicode and W3C).

View version 1 JSON-LD Turtle RDF/XML

Every change names the reason behind it: a finding of the content review, one of its library-wide decisions, the metadata that review wrote onto every record, or a hand edit. None of it is legal advice.

Nothing on this page is legal advice. What a license means is decided by its text; ask a legal advisor before you rely on it.