Remove Python 2 in docs and README files

Author: nicolargo

Diff for: .github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [2.7, 3.5, 3.6, 3.7, 3.8, 3.9]
+        python-version: [3.4, 3.5, 3.6, 3.7, 3.8, 3.9]
 
     steps:
 

Diff for: README.rst

@@ -57,20 +57,14 @@ add new plugins or exports modules.
 Requirements
 ============
 
-- ``python>=2.7`` or ``python>=3.4``
+- ``python>=3.4``
 - ``psutil>=5.3.0`` (better with latest version)
 - ``defusedxml`` (in order to monkey patch xmlrpc)
-- ``future`` (for Python 2 support)
 
-*Note for Python 2.6 users*
+*Note for Python 2 users*
 
-Glances no longer supports Python 2.6. Please upgrade
-to a minimum Python version of 2.7/3.4+ or downgrade to Glances 2.6.2 (last version
-with Python 2.6 support).
-
-*Deprecation warning note for Python 2.x users*
-
-Glances version 4.0 will no longer supports Python 2.x.
+Glances version 4 or higher do not support Python 2.
+Please uses Glances version 3 if you need Python 2 support.
 
 Optional dependencies:
 
@@ -87,7 +81,7 @@ Optional dependencies:
 - ``influxdb-client``  (for the InfluxDB version 2 export module) [Only for Python >= 3.6]
 - ``kafka-python`` (for the Kafka export module)
 - ``netifaces`` (for the IP plugin)
-- ``py3nvml`` (for the GPU plugin) [Only for Python 3]
+- ``py3nvml`` (for the GPU plugin)
 - ``pika`` (for the RabbitMQ/ActiveMQ export module)
 - ``potsdb`` (for the OpenTSDB export module)
 - ``prometheus_client`` (for the Prometheus export module)
@@ -98,7 +92,7 @@ Optional dependencies:
 - ``pySMART.smartx`` (for HDD Smart support) [Linux-only]
 - ``pyzmq`` (for the ZeroMQ export module)
 - ``requests`` (for the Ports, Cloud plugins and RESTful export module)
-- ``scandir`` (for the Folders plugin) [Only for Python < 3.5]
+- ``scandir`` (for the Folders plugin) [Only for Python 3.4]
 - ``sparklines`` (for the Quick Plugin sparklines option)
 - ``statsd`` (for the StatsD export module)
 - ``wifi`` (for the wifi plugin) [Linux-only]
@@ -283,7 +277,7 @@ MacPorts
 Windows
 -------
 
-Install `Python`_ for Windows (Python 2.7.9+ and 3.4+ ship with pip) and
+Install `Python`_ for Windows (Python 3.4+ ship with pip) and
 then run the following command:
 
 .. code-block:: console

Diff for: glances/README.txt

@@ -23,36 +23,16 @@ actions.py                  Manage trigger actions (via mustache)
 snmp.py                     Glances SNMP client (via pysnmp)
 ...
 plugins
-    => Glances data providers
-    glances_plugins.py      "Father class" for others plugins
-    glances_cpu.py          Manage CPU stats
-    glances_load.py         Manage load stats
-    glances_mem.py          Manage RAM stats
-    glances_memswap.py      Manage swap stats
-    glances_network.py      Manage network stats
-    glances_fs.py           Manage file system stats
-    glances_diskio.py       Manage disk I/O stats
-    glances_docker.py       Glances Docker plugin (via docker-py)
-    glances_raid.py         Glances RAID plugin (via pymdstat)
+    => Glances plugins
     ...
 outputs
     => Glances UI
     glances_curses.py       The curses interface
     glances_bottle.py       The web interface
     ...
 exports
-    => Glances export interfaces
-    glances_export.py       "Father class" for exports
-    glances_csv.py          The CSV export module
-    glances_influxdb.py     The InfluxDB export module
-    glances_mqtt.py         The MQTT export module
-    glances_opentsdb.py     The OpenTSDB export module
-    glances_rabbitmq.py     The RabbitMQ export module
-    glances_statsd.py       The StatsD export module
+    => Glances exports
     ...
 amps
     => Glances Application Monitoring Processes (AMP)
-    glances_amp.py          "Father class" for AMPs
-    glances_default.py      Default AMP
-    glances_nginx.py        Nginx AMP
     ...

Diff for: setup.py

@@ -9,14 +9,10 @@
 from setuptools import setup, Command
 
 
-if sys.version_info < (2, 7) or (3, 0) <= sys.version_info < (3, 4):
-    print('Glances requires at least Python 2.7 or 3.4 to run.')
+if sys.version_info < (3, 4):
+    print('Glances requires at least Python 3.4 to run.')
     sys.exit(1)
 
-PY2 = sys.version_info[0] == 2
-PY3 = sys.version_info[0] == 3
-
-
 # Global functions
 ##################
 
@@ -52,14 +48,15 @@ def get_install_requires():
 def get_install_extras_require():
     extras_require = {
         'action': ['chevron'],
-        'browser': ['zeroconf==0.19.1' if PY2 else 'zeroconf>=0.19.1'],
+        'browser': ['zeroconf>=0.19.1'],
         'cloud': ['requests'],
         'docker': ['docker>=2.0.0'],
         'export': ['bernhard', 'cassandra-driver', 'couchdb', 'elasticsearch',
-                   'graphitesender', 'influxdb>=1.0.0', 'kafka-python', 'pika',
-                   'paho-mqtt', 'potsdb', 'prometheus_client', 'pyzmq',
-                   'statsd'],
-        'folders': ['scandir'],  # python_version<"3.5"
+                   'graphitesender', 'influxdb>=1.0.0', 'influxdb-client',
+                   'kafka-python', 'pika', 'paho-mqtt', 'potsdb', 'prometheus_client',
+                   'pyzmq', 'statsd'],
+        'folders': ['scandir'],
+        'gpu': ['py3nvml'],
         'graph': ['pygal'],
         'ip': ['netifaces'],
         'raid': ['pymdstat'],
@@ -70,9 +67,6 @@ def get_install_extras_require():
         'wifi': ['wifi']
         #'gpu' and 'sensors' ==> See bellow
     }
-    if PY3:
-        extras_require['export'].append('influxdb-client')
-        extras_require['gpu'] = ['py3nvml']
     if sys.platform.startswith('linux'):
         extras_require['sensors'] = ['batinfo']
 
@@ -132,8 +126,6 @@ def run(self):
         'Intended Audience :: System Administrators',
         'License :: OSI Approved :: GNU Lesser General Public License v3 (LGPLv3)',
         'Operating System :: OS Independent',
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',

Diff for: sonar-project.properties

@@ -1,7 +1,7 @@
 # Required metadata
 sonar.projectKey=glances
 sonar.projectName=Glances
-sonar.projectVersion=2.7
+sonar.projectVersion=4.0
 
 # Path to the parent source code directory.
 # Path is relative to the sonar-project.properties file. Replace "\" by "/" on Windows.

Diff for: tox.ini

@@ -5,7 +5,7 @@
 #   tox
 
 [tox]
-envlist = py27, py38, py39
+envlist = py39
 
 [testenv]
 deps =