compatibleversion

compatibleversion takes two parameters, a version and a specifier (i.e., version constraints), and returns a Boolean value indicating compatibility.

NOTE: compatibleversion wraps packaging in order to simplify and test its use. Versions and specifiers provided to compatibleversion must conform to PEP 440 as required by packaging.

install

$ pip install compatibleversion

usage

Use compatibleversion in Python code:

from compatibleversion import check_version

check_version('1.3.0', '> 1.2, < 3.3')          # True
check_version('2.1', '~= 2.2')                  # False

check_version('1.1.dev0', '>=1.0')              # True
check_version('1.1.dev0', '>=1.0', False)       # False, not allowing pre/dev-final comparison

check_version('1.1.dev0', '>=1.0.dev0')         # True, dev-dev compare
check_version('1.1.dev0', '>=1.0.dev0', False)  # True, doesn't affect since dev-dev

version parameter

The version parameter must conform to PEP 440. These are examples of valid version parameters:

1.2.0
0.0.0
0.9
0.9.1
0.9.2
0.9.10
0.9.11
1.0
1.0.1
1.1
2.0
2.0.1
1.0a1
1.0a2
1.0b1
1.0rc1
1.0.dev1
1.0.dev2
1.0.dev3
1.0.dev4
1.0b2.post345.dev456
1.0b2.post345
1.0rc1.dev456

specifier parameter

The version specifier parameter must conform to PEP 440. The specifier consists of one or more version clauses separated by commas.

For example, these are valid version specifiers (the last two are approximately equivalent):

==1.0.1
< 1.2, > 1.3
~= 0.9, >= 1.0, != 1.3.4.*, < 2.0
~= 1.4.5.0
== 1.1.post1
~= 2.2
>= 2.2, == 2.*

Here are more helpful specifier examples from PEP 440 and an explanation of their meaning:

• ~=3.1: version 3.1 or later, but not version 4.0 or later.
• ~=3.1.2: version 3.1.2 or later, but not version 3.2.0 or later.
• ~=3.1a1: version 3.1a1 or later, but not version 4.0 or later.
• == 3.1: specifically version 3.1 (or 3.1.0), excludes all pre-releases, post releases, developmental releases and any 3.1.x maintenance releases.
• == 3.1.*: any version that starts with 3.1. Equivalent to the ~=3.1.0 compatible release clause.
• ~=3.1.0, != 3.1.3: version 3.1.0 or later, but not version 3.1.3 and not version 3.2.0 or later.