import sys
import re
if len(sys.argv) != 2:
print (sys.stderr,"URL required")
sys.exit(-1)
url = sys.argv[1]
if re.match(r'^https?:/{2}\w.+$',url):
print("合法url")
else:
print("不合法url")
import sys
import re
if len(sys.argv) != 2:
print (sys.stderr,"URL required")
sys.exit(-1)
url = sys.argv[1]
if re.match(r'^https?:/{2}\w.+$',url):
print("合法url")
else:
print("不合法url")