ppparis: corrige l'arrêt du display en mode headless

ppparis.py

@@ -30,13 +30,6 @@ def print_output(data):
   f.write(data+"\n")
   f.close()
 
-def start_display():
-  display = Display(visible=False, size=(1024, 768))
-  display.start()
-
-def stop_display():
-  display.stop()
-
 def get_html(url):
   browser.get(url)
   time.sleep(__WAITING_TIME)
@@ -120,7 +113,8 @@ webdriver_options.add_experimental_option("prefs",prefs)
 if __headless_mode:
   webdriver_options.add_argument("--headless")
   webdriver_options.add_argument("--window-size=1024,768")
-  start_display()
+  display = Display(visible=False, size=(1024, 768))
+  display.start()
 else:
   webdriver_options.add_argument("--start-maximized")
 
@@ -167,4 +161,4 @@ for a in soup.find_all('a', href=True):
 # On arrête le navigateur
 browser.quit()
 if __headless_mode:
-  stop_display()
\ No newline at end of file
+  display.stop()