Code cleanup

deletefb/tools/chrome_driver.py

@@ -2,14 +2,23 @@ import re
 import zipfile
 import os, sys, stat, platform
 from urllib.request import urlretrieve
+from collections import namedtuple
 
 from clint.textui import puts, colored
 import progressbar
 
 from selenium import webdriver
-from selenium.webdriver.chrome.options import Options
 
 from .common import NO_CHROME_DRIVER
+from ..exceptions import UnknownOSException
+
+
+_ = namedtuple('WebDrivers', 'mac linux windows')
+drivers = ['https://chromedriver.storage.googleapis.com/78.0.3904.70/chromedriver_mac64.zip',
+           'https://chromedriver.storage.googleapis.com/78.0.3904.70/chromedriver_linux64.zip',
+           'https://chromedriver.storage.googleapis.com/78.0.3904.70/chromedriver_win32.zip'
+           ]
+WebDriver = _(drivers[0], drivers[1], drivers[2])
 
 
 def extract_zip(filename):
@@ -19,29 +28,28 @@ def extract_zip(filename):
     :return: new filename
     """
     try:
-        file = zipfile.ZipFile(filename, 'r')
+        _file = zipfile.ZipFile(filename, 'r')
     except FileNotFoundError:
         puts(colored.red(f"{filename} Does not exist"))
-        sys.exit()
+        sys.exit(1)
 
     # Save the name of the new file
-    new_file_name = file.namelist()[0]
+    new_file_name = _file.namelist()[0]
 
     # Extract the file and make it executable
-    file.extractall()
+    _file.extractall()
 
     driver_stat = os.stat(new_file_name)
     os.chmod(new_file_name, driver_stat.st_mode | stat.S_IEXEC)
 
-    file.close()
+    _file.close()
     os.remove(filename)
     return new_file_name
 
 
 def setup_selenium(driver_path, options):
     # Configures selenium to use a custom path
-    driver = webdriver.Chrome(executable_path=driver_path, options=options)
-    return driver
+    return webdriver.Chrome(executable_path=driver_path, options=options)
 
 
 def get_webdriver():
@@ -59,23 +67,20 @@ def get_webdriver():
             # Extract file
             extract_zip(web_driver[0])
 
-        return os.getcwd() + '/chromedriver'
+        return "{0}/chromedriver".format(os.getcwd())
 
     else:
         # Download it according to the current machine
-        webdrivers = ['https://chromedriver.storage.googleapis.com/78.0.3904.70/chromedriver_mac64.zip',
-                      'https://chromedriver.storage.googleapis.com/78.0.3904.70/chromedriver_linux64.zip',
-                      'https://chromedriver.storage.googleapis.com/78.0.3904.70/chromedriver_win32.zip'
-                      ]
+
         os_platform = platform.system()
         if os_platform == 'Darwin':
-            chrome_webdriver = webdrivers[0]
+            chrome_webdriver = WebDriver.mac
         elif os_platform == 'Linux':
-            chrome_webdriver = webdrivers[1]
+            chrome_webdriver = WebDriver.linux
         elif os_platform == 'Windows':
-            chrome_webdriver = webdrivers[2]
+            chrome_webdriver = WebDriver.windows
         else:
-            raise Exception("Unknown Operating system platform")
+            raise UnknownOSException("Unknown Operating system platform")
 
         global total_size
 
@@ -102,7 +107,8 @@ def get_webdriver():
         if int(response[1].get('Content-Length')) == total_size:
             puts(colored.green(f"DONE!"))
 
-            return os.getcwd() + '/' + extract_zip(file_name)
+            return "{0}/{1}".format(os.getcwd(), extract_zip(file_name))
+
         else:
             puts(colored.red("An error Occurred While trying to download the driver."))
             # remove the downloaded file and exit