How to make an activation flag?

[Krszt]

Hello, I have a program, which runs well. It looks like

os.chdir('zips') a = open("ziplist.txt", "w") for path, subdirs, files in os.walk(r'./'): for filename in files: if filename.endswith(".zip"): commands.... for line in open('%s.txt' % (date_ID)).readlines(): if line.startswith('range_samples:'): commands... os.chdir('../') 

Now I want to expand it with an if/else statement as an activation flag, something like: if the first argv is 1, run the whole program written above and else do nothing. I am trying it like this:

if activate_flag == 1 : os.chdir('zips') a = open("ziplist.txt", "w") for path, subdirs, files in os.walk(r'./'): for filename in files: if filename.endswith(".zip"): commands.... for line in open('%s.txt' % (date_ID)).readlines(): if line.startswith('range_samples:'): commands... os.chdir('../') else: print("NO")

But it just write out the else statement: NO Where is my mistake?

Yes, Itried, but my problem is that it doesnt do anything.