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Python Requirements.txt Syntax

Keywords: Python, Requirements

Example:

SomeProject
SomeProject == 1.3
SomeProject >= 1.2, < 2.0
SomeProject[foo, bar]
SomeProject ~= 1.4.2
SomeProject == 5.4 ; python_version < '3.8'
SomeProject ; sys_platform == 'win32'
requests [security] >= 2.8.1, == 2.8.* ; python_version < "2.7"

Reference:

• Requirement Specifiers: requirements.txt spec in pip document

• PEP 440 – Version Identification and Dependency Specification: related PEP 440 standard created in 2013-03-18