61 lines
1.3 KiB
Python
61 lines
1.3 KiB
Python
import re
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def isInteger(n):
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'''Check if a value is an integer
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Args:
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* n: the value that should be checked
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Returns:
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* False: Value is no integer
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* True: Value is integer
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'''
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try:
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# convert to string before testing to convert to int
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# without this also False and True would pass here
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int(str(n))
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return True
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except ValueError:
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return False
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def isAlphaNumeric(str):
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'''Check if a string only contains alphanumeric characters
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Args:
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* str: the value that should be checked
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Returns:
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* False: String is not alphanumeric
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* True: String is aplhanumeric
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'''
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try:
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if re.match('^[A-Za-z0-9]*$', str):
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return True
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else:
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raise
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except:
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return False
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def isIPv4address(str):
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'''Check if a string is a valid IPv4 address
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Args:
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* str: the string that should be checked
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Returns:
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* False: String is not an IPv4 address
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* True: String is an IPv4 address
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'''
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try:
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reIPv4 = "(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$"
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if re.match(reIPv4, str):
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return True
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else:
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raise
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except:
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return False
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isIPv4address('1.2.3.300')
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