Check pip version for the first run

pip_upgrade/tool.py

@@ -18,6 +18,10 @@ def __init__(self, args, config):
             if len(config['restore']['last_exclude']) != 0:
                 self.restorable = True
 
+        # Upgrade if it is first run
+        if config.first_run:
+            self._upgrade_pip()
+
         # Exclude editable and user defined packages
         self.excluded_pkgs = [] if self.args.exclude is None else self.args.exclude
         self.excluded_pkgs += self.config['conf']['exclude'].split(' ')
@@ -155,6 +159,10 @@ def upgrade(self):
             print("A new update avaliable for pip-upgrade-tool.\nPlease manually upgrade the tool using 'python -m pip install -U pip-upgrade-tool'")
             # cprint("A new update avaliable for pip-upgrade-tool.\nPlease manually upgrade the tool using 'python -m pip install -U pip-upgrade-tool'", color='yellow')
 
+    def _upgrade_pip(self):
+        print('Checking pip version for the first run...')
+        subprocess.check_call([sys.executable, '-m', 'pip', 'install', '-U', 'pip'])
+
     def _help(self):
         print("")
         print("y              :  Continue")

pip_upgrade/tools/config.py

@@ -8,6 +8,7 @@ def __init__(self):
         self.home = os.path.expanduser('~')
         self.name = '.pipupgrade.ini'
         self.config = configparser.ConfigParser()
+        self.first_run = True
 
         self._init()
         self._check_validity()
@@ -33,6 +34,7 @@ def _init(self):
             # Save
             self._save()
         else:
+            self.first_run = False
             self._read()
 
     def _check_validity(self):

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="pip-upgrade-tool",
-    version="0.7.2",
+    version="0.7.3",
     author="Onur Cetinkol",
     author_email="realiti44@gmail.com",
     description="An easy tool for upgrading all of your packages while not breaking dependencies",
@@ -20,7 +20,7 @@
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
     ],
-    python_requires='>=3.6',
+    python_requires='>=3.7',
     packages=["pip_upgrade", "pip_upgrade.tools"],
     install_requires=["packaging"],
 )