Python: Check whether a given string has a capital letter, a lower case letter, a number and specified length using lambda
Python Lambda: Exercise-33 with Solution
Write a Python program to check whether a given string contains a capital letter, a lower case letter, a number and a minimum length using lambda.
Sample Solution:
Python Code :
def check_string(str1):
messg = [
lambda str1: any(x.isupper() for x in str1) or 'String must have 1 upper case character.',
lambda str1: any(x.islower() for x in str1) or 'String must have 1 lower case character.',
lambda str1: any(x.isdigit() for x in str1) or 'String must have 1 number.',
lambda str1: len(str1) >= 7 or 'String length should be atleast 8.',]
result = [x for x in [i(str1) for i in messg] if x != True]
if not result:
result.append('Valid string.')
return result
s = input("Input the string: ")
print(check_string(s))
Sample Output:
Input the string: W3resource ['Valid string.']
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Python: Tips of the Day
Find current directory and file's directory:
To get the full path to the directory a Python file is contained in, write this in that file:
import os dir_path = os.path.dirname(os.path.realpath(__file__))
(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)
To get the current working directory use
import os cwd = os.getcwd()
Documentation references for the modules, constants and functions used above:
- The os and os.path modules.
- The __file__ constant
- os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
- os.path.dirname(path) (returns "the directory name of pathname path")
- os.getcwd() (returns "a string representing the current working directory")
- os.chdir(path) ("change the current working directory to path")
Ref: https://bit.ly/3fy0R6m
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