Appel de fonction Python au début du programme

Question

Je suis plus jeune en python et je crois qu'il y a une réponse simple à cela, mais je n'arrive pas à le comprendre. Est-il possible de faire un appel de fonction au début de ce programme. Comme vous pouvez le voir, je cours le code et demande ensuite de l'exécuter à nouveau, c'est là que se fait l'appel de la fonction en ce moment. Cela fonctionne comme il est, mais je voudrais me débarrasser de tout sauf la boucle while et la fonction afin que je puisse nettoyer le code. Merci.

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import subprocess 
import re 

print ("This will print any service that is stopped or unknown \n") 

#servers 
server = str(input("Enter server to query(IP Address): ")) 
server_list = server.split(",") 
server_count = len(server_list) 

#services 
service = str(input("Enter service to query: ")) 
service_list = service.split(",") 
service_count = len(service_list) 

#server loop 
for a in range(len(server_list)): 
    server_net_use = 'net use'+r' \\'+server_list[a]+r'\ipc$ /user:Administrator itv' 
    server_disconnect = 'net use'+r' \\'+server_list[a]+r'\ipc$ /d' 
    server_sc = r'\\'+server_list[a] 
    subprocess.check_output(server_net_use, universal_newlines=True) 

#service loop 
    for i in range(len(service_list)): 
    x = subprocess.check_output(['sc', server_sc, 'query', service_list[i]], universal_newlines=True) 
    y = re.sub('\s+',' ',x) 

    if 'FAILED' in y: 
     print ('\n'+server_list[a]+' - '+service_list[i]+' - Unknown Service!') 
    elif 'STOPPED' in y: 
     print ('\n'+server_list[a]+' - '+service_list[i]+' - '+y.split(" ")[10]) 

def repeat(): 
    #servers 
    server = str(input("Enter server to query(IP Address): ")) 
    server_list = server.split(",") 
    server_count = len(server_list) 

    #services 
    service = str(input("Enter service to query: ")) 
    service_list = service.split(",") 
    service_count = len(service_list) 

#server loop 
    for a in range(len(server_list)): 
    server_net_use = 'net use'+r' \\'+server_list[a]+r'\ipc$ /user:Administrator itv' 
    server_disconnect = 'net use'+r' \\'+server_list[a]+r'\ipc$ /d' 
    server_sc = r'\\'+server_list[a] 
    subprocess.check_output(server_net_use, universal_newlines=True) 

#service loop 
    for i in range(len(service_list)): 
     x = subprocess.check_output(['sc', server_sc, 'query', service_list[i]], universal_newlines=True) 
     y = re.sub('\s+',' ',x) 

     if 'FAILED' in y: 
     print ('\n'+server_list[a]+' - '+service_list[i]+' - Unknown Service!\n') 
     elif 'STOPPED' in y: 
     print ('\n'+server_list[a]+' - '+service_list[i]+' - '+y.split(" ")[10]+'\n') 


while(True): 
    a = str(input("Do you want to query another service? y/n: ")) 
    if 'y' in a: 
     subprocess.check_output(server_disconnect, universal_newlines=True) 
     print ("\n") 
     repeat() 
    elif 'n' in a: 
     subprocess.check_output(server_disconnect, universal_newlines=True) 
     break; 
    else: 
     print ('Enter y/n') 

Answer 1

Voici comment:

import subprocess 
import re 

def server_checker(): 
    print ("This will print any service that is stopped or unknown \n") 
    #servers 
    server = str(input("Enter server to query(IP Address): ")) 
    server_list = server.split(",") 
    server_count = len(server_list) 

    #services 
    service = str(input("Enter service to query: ")) 
    service_list = service.split(",") 
    service_count = len(service_list) 

    #server loop 
    for a in range(len(server_list)): 
     server_net_use = 'net use'+r' \\'+server_list[a]+r'\ipc$ /user:Administrator itv' 
     server_disconnect = 'net use'+r' \\'+server_list[a]+r'\ipc$ /d' 
     server_sc = r'\\'+server_list[a] 
     subprocess.check_output(server_net_use, universal_newlines=True) 

    #service loop 
    for i in range(len(service_list)): 
     x = subprocess.check_output(['sc', server_sc, 'query', service_list[i]], universal_newlines=True) 
     y = re.sub('\s+',' ',x) 

     if 'FAILED' in y: 
     print ('\n'+server_list[a]+' - '+service_list[i]+' - Unknown Service!\n') 
     elif 'STOPPED' in y: 
     print ('\n'+server_list[a]+' - '+service_list[i]+' - '+y.split(" ")[10]+'\n') 


if __name__ == "__main__":  
    server_checker() 
    while(True): 
     answer = str(input("Do you want to query another service? y/n: ")) 
     if answer.lower() in ["yes","y","letsgo"]: 
      subprocess.check_output(server_disconnect, universal_newlines=True) 
      print ("\n") 
      server_checker() 
     elif answer.lower() in ["no","n,","nowayhosay"]: 
      subprocess.check_output(server_disconnect, universal_newlines=True) 
      break; 
     else: 
      print ('Enter y/n') 

Answer 2

Sa fait assez facile. Définissez simplement la fonction dès que possible, puis appelez-la juste après qu'elle a été définie.

def saysomething(say): 
print say 
saysomething("Hello, World!") 

Si tout se passe bien, vous devriez obtenir:

Hello, World! 

Sinon, vérifier les erreurs.