Drop Python 3.4 support (#7721)

Fixes #7393.

* Remove Python 3.4 classifiers

* Remove unneeded typing dependency

* Exclude Python 3.4 in python_requires

* Remove Python 3.4 deprecation warning

* update changelog

certbot/CHANGELOG.md

@@ -13,6 +13,7 @@ Certbot adheres to [Semantic Versioning](https://semver.org/).
 * Add directory field to error message when field is missing.
 * If MD5 hasher is not available, try it in non-security mode (fix for FIPS systems) -- [#1948](https://github.com/certbot/certbot/issues/1948)
 * Remove ECDHE-RSA-AES128-SHA from NGINX ciphers list now that Windows 2008 R2 and Windows 7 are EOLed
+* Support for Python 3.4 has been removed.
 
 ### Fixed
 

certbot/certbot/_internal/main.py

@@ -1337,10 +1337,6 @@ def main(cli_args=None):
         if config.func != plugins_cmd:  # pylint: disable=comparison-with-callable
             raise
 
-    if sys.version_info[:2] == (3, 4):
-        logger.warning("Python 3.4 support will be dropped in the next release "
-                       "of Certbot - please upgrade your Python version to 3.5+.")
-
     set_displayer(config)
 
     # Reporter

certbot/setup.py

@@ -88,7 +88,6 @@ dev3_extras = [
     'astroid',
     'mypy',
     'pylint',
-    'typing',  # for python3.4
 ]
 
 docs_extras = [
@@ -124,7 +123,7 @@ setup(
     author="Certbot Project",
     author_email='client-dev@letsencrypt.org',
     license='Apache License 2.0',
-    python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*',
+    python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*',
     classifiers=[
         'Development Status :: 5 - Production/Stable',
         'Environment :: Console',
@@ -136,7 +135,6 @@ setup(
         'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',