python使用正则表达式检测给定的URL地址是否合法

Posted 2021-06-29 Data+Science+Insight

python使用正则表达式检测给定的URL地址是否合法

 

# python使用正则表达式检测给定的URL地址是否合法

# python使用正则表达式检测给定的URL地址是否合法
# Check if an URL is valid or not using Regular Expression

# Python3 program to check
# URL is valid or not
# using regular expression
import re

# Function to validate URL
# using regular expression
def isValidURL(str):

	# Regex to check valid URL
	regex = ("((http|https)://)(www.)?" +
			"[a-zA-Z0-9@:%._\\\\+~#?&//=]" +
			"{2,256}\\\\.[a-z]" +
			"{2,6}\\\\b([-a-zA-Z0-9@:%" +
			"._\\\\+~#?&//=]*)")
	
	# Compile the ReGex
	p = re.compile(regex)

	# If the string is empty
	# return false
	if (str == None):
		return False

	# Return if the string
	# matched the ReGex
	if(re.search(p, str)):
		return True
	else:
		return False

# Driver code

# Test Case 1:
url