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Python | Find position of a character in given string
• Difficulty Level : Easy
• Last Updated : 07 Jun, 2019

Given a string and a character, your task is to find the first position of the character in the string. These types of problem are very competitive programming where you need to locate the position of the character in a string.

Let’s discuss a few methods to solve the problem.

Method #1: Using Naive Method

 `# Python3 code to demonstrate``# to find the first position of the character``# in a given string`` ` `# Initialising string``ini_string ``=` `'abcdef'`` ` `# Character to find``c ``=` `"b"``# printing initial string and character``print` `(``"initial_string : "``, ini_string, ``"\ncharacter_to_find : "``, c)`` ` `# Using Naive Method``res ``=` `None``for` `i ``in` `range``(``0``, ``len``(ini_string)):``    ``if` `ini_string[i] ``=``=` `c:``        ``res ``=` `i ``+` `1``        ``break``     ` `if` `res ``=``=` `None``:``    ``print` `(``"No such charater available in string"``)``else``:``    ``print` `(``"Character {} is present at {}"``.``format``(c, ``str``(res)))`
Output:
```initial_string :  abcdef
character_to_find :  b
Character b is present at 2
```

Method #2: Using find

This method returns -1 in case character not present.

 `# Python3 code to demonstrate``# to find first position of character``# in a given string`` ` `# Initialising string``ini_string ``=` `'abcdef'``ini_string2 ``=` `'xyze'`` ` `# Character to find``c ``=` `"b"``# printing initial string and character``print` `(``"initial_strings : "``, ini_string, ``" "``, ``        ``ini_string2, ``"\ncharacter_to_find : "``, c)`` ` `# Using find Method``res1 ``=` `ini_string.find(c)``res2 ``=` `ini_string2.find(c)``     ` `if` `res1 ``=``=` `-``1``:``    ``print` `(``"No such charater available in string {}"``.``format``(``                                                ``ini_string))``else``:``    ``print` `(``"Character {} in string {} is present at {}"``.``format``(``                                 ``c, ini_string, ``str``(res1 ``+` `1``)))``     ` `if` `res2 ``=``=` `-``1``:``    ``print` `(``"No such charater available in string {}"``.``format``(``                                               ``ini_string2))``else``:``    ``print` `(``"Character {} in string {} is present at {}"``.``format``(``                                ``c, ini_string2, ``str``(res2 ``+` `1``)))`
Output:
```initial_strings :  abcdef   xyze
character_to_find :  b
Character b in string abcdef is present at 2
No such charater available in string xyze
```

Method #3: Using index()

This Method raises ValueError in case if character not present

 `# Python3 code to demonstrate``# to find first position of character``# in a given string`` ` `# Initialising string``ini_string1 ``=` `'xyze'`` ` `# Character to find``c ``=` `"b"``# printing initial string and character``print` `(``"initial_strings : "``, ini_string1,``             ``"\ncharacter_to_find : "``, c)`` ` `# Using index Method``try``:``    ``res ``=` `ini_string1.index(c)``    ``print` `(``"Character {} in string {} is present at {}"``.``format``(``                                  ``c, ini_string1, ``str``(res ``+` `1``)))``except` `ValueError as e:``    ``print` `(``"No such charater available in string {}"``.``format``(ini_string1))`
Output:
```initial_strings :  xyze
character_to_find :  b
No such charater available in string xyze
```

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