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Aya Bouchiha
Aya Bouchiha

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Another 5 Helpful Python String Methods

#python #beginners #codenewbie #programming

Hello, I'm Aya Bouchiha,

this is the part 2 of 5 useful python string methods.

capitalize()

capitalize(): this string method converts to uppercase the first letter of the first word in the specified string.

first_name = "aya" print(first_name.capitalize()) # Aya
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isalpha()

isalpha(): checks if all string's characters are alphabets letters [A-z].

print('AyaBouchiha'.isalpha()) # True print('Aya Bouchiha'.isalpha()) # False print('Aya-Bouchiha'.isalpha()) # False print('AyaBouchiha 1'.isalpha()) # False print('Aya Bouchiha!'.isalpha()) # False
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isdigit()

isdigit(): checks if all string's characters are digits.

print('100'.isdigit()) # True print('12a'.isdigit()) # False print('100 000'.isdigit()) # False print('+212-6000-00000'.isdigit()) # False print('12a'.isdigit()) # False  print('3\u00B2') # 3² print('3\u00B2'.isdigit()) # True
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isalnum()

isalnum(): checks if all string's characters are alphanumeric (alphabets, numbers).

print('2021'.isalnum()) # True print('30kviews'.isalnum()) # True print('+212600000000'.isalnum()) # False print('dev.to'.isalnum()) # False print('developer.aya.b@gmail.com'.isalnum()) # False print('Aya Bouchiha'.isalnum()) # False
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strip()

strip(characters(optional)): lets you delete the given characters (by default => whitespaces) at the start and at the end of the specified string.

print(' Aya Bouchiha '.strip()) # Aya Bouchiha print(' +212612345678 '.strip(' +')) # 212612345678 print('Hi, I\'m Aya Bouchiha'.strip('Hi, ')) # I'm Aya Bouchiha
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Summary

  • capitalize(): converts to uppercase the first letter of the first word in the specified string.
  • isalpha(): checks if all string's characters are alphabets letters.
  • isdigit(): checks if all string's characters are digits.
  • isalnum(): checks if all string's characters are alphanumeric.
  • strip(): deletes the given characters (by default => whitespaces) at the start and at the end of the specified string.

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