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10 best Python Functional testing libraries in 2025

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by marketing.admin@openweaver.com dot icon Updated: Mar 11, 2023

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Web application functional testing is a very important part of software development. The functional testing process helps to ensure that your web application functions as it should. It's an essential part of software development and critical in terms of satisfying your customers' needs. The functional testing process can be done manually or automatically. There are many libraries for Python functional testing. Let us see the 10 best Python functional testing libraries. Pytest - framework makes it easy to write small tests, yet scales; python-testing-crawler - automated functional testing of a web application; FunkLoad - load testing framework for web applications

pytestby pytest-dev

Python doticonstar image 10300 doticonVersion:7.3.2doticon
License: Permissive (MIT)

The pytest framework makes it easy to write small tests, yet scales to support complex functional testing

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            pytestby pytest-dev

            Python doticon star image 10300 doticonVersion:7.3.2doticon License: Permissive (MIT)

            The pytest framework makes it easy to write small tests, yet scales to support complex functional testing
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                      PyFunctionalby EntilZha

                      Python doticonstar image 2168 doticonVersion:v1.4.3doticon
                      License: Permissive (MIT)

                      Python library for creating data pipelines with chain functional programming

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                                PyFunctionalby EntilZha

                                Python doticon star image 2168 doticonVersion:v1.4.3doticon License: Permissive (MIT)

                                Python library for creating data pipelines with chain functional programming
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                                          FunkLoadby nuxeo

                                          Python doticonstar image 370 doticonVersion:Currentdoticon
                                          License: Strong Copyleft (GPL-2.0)

                                          Functional and load testing framework for web applications, written in Python

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                                                    FunkLoadby nuxeo

                                                    Python doticon star image 370 doticonVersion:Currentdoticon License: Strong Copyleft (GPL-2.0)

                                                    Functional and load testing framework for web applications, written in Python
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                                                              pifpafby jd

                                                              Python doticonstar image 179 doticonVersion:Currentdoticon
                                                              License: Permissive (Apache-2.0)

                                                              Python fixtures and daemon managing tools for functional testing

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                                                                        pifpafby jd

                                                                        Python doticon star image 179 doticonVersion:Currentdoticon License: Permissive (Apache-2.0)

                                                                        Python fixtures and daemon managing tools for functional testing
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                                                                                  python-testing-crawlerby python-testing-crawler

                                                                                  Python doticonstar image 72 doticonVersion:Currentdoticon
                                                                                  License: Weak Copyleft (MPL-2.0)

                                                                                  A crawler for automated functional testing of a web application

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                                                                                            python-testing-crawlerby python-testing-crawler

                                                                                            Python doticon star image 72 doticonVersion:Currentdoticon License: Weak Copyleft (MPL-2.0)

                                                                                            A crawler for automated functional testing of a web application
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                                                                                                      funqby parkouss

                                                                                                      Python doticonstar image 40 doticonVersion:1.2.0doticon
                                                                                                      License: Others (Non-SPDX)

                                                                                                      funq is a python framework to write FUNctional tests for Qt applications

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                                                                                                                funqby parkouss

                                                                                                                Python doticon star image 40 doticonVersion:1.2.0doticon License: Others (Non-SPDX)

                                                                                                                funq is a python framework to write FUNctional tests for Qt applications
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                                                                                                                          REST_API_Test_Framework_Pythonby peterjpxie

                                                                                                                          Python doticonstar image 37 doticonVersion:Currentdoticon
                                                                                                                          License: Permissive (MIT)

                                                                                                                          REST API Test Framework example using Python requests and flask for both functional and performance tests.

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                                                                                                                                    REST_API_Test_Framework_Pythonby peterjpxie

                                                                                                                                    Python doticon star image 37 doticonVersion:Currentdoticon License: Permissive (MIT)

                                                                                                                                    REST API Test Framework example using Python requests and flask for both functional and performance tests.
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                                                                                                                                              autotest-dockerby autotest

                                                                                                                                              Python doticonstar image 25 doticonVersion:0.8.8doticon
                                                                                                                                              License: Others (Non-SPDX)

                                                                                                                                              Autotest client test containing functional & integration subtests for the Docker project

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                                                                                                                                                        autotest-dockerby autotest

                                                                                                                                                        Python doticon star image 25 doticonVersion:0.8.8doticon License: Others (Non-SPDX)

                                                                                                                                                        Autotest client test containing functional & integration subtests for the Docker project
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                                                                                                                                                                  pytest-pipelineby bow

                                                                                                                                                                  Python doticonstar image 19 doticonVersion:Currentdoticon
                                                                                                                                                                  License: Permissive (BSD-3-Clause)

                                                                                                                                                                  Pytest plugin for functional testing of data analysis pipelines

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                                                                                                                                                                            pytest-pipelineby bow

                                                                                                                                                                            Python doticon star image 19 doticonVersion:Currentdoticon License: Permissive (BSD-3-Clause)

                                                                                                                                                                            Pytest plugin for functional testing of data analysis pipelines
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                                                                                                                                                                                      zope.testbrowserby zopefoundation

                                                                                                                                                                                      Python doticonstar image 21 doticonVersion:Currentdoticon
                                                                                                                                                                                      License: Others (Non-SPDX)

                                                                                                                                                                                      Programmable browser for functional black-box tests

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                                                                                                                                                                                                zope.testbrowserby zopefoundation

                                                                                                                                                                                                Python doticon star image 21 doticonVersion:Currentdoticon License: Others (Non-SPDX)

                                                                                                                                                                                                Programmable browser for functional black-box tests
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