Python find tilde in string

python special characters in string
find special characters in string

I'm trying to find "~" in a string, but it returns 0.

Can someone help here?

tt = "~"
tt.find("~")
Out[393]: 0

with find you are looking for the position of the substring in the string. 0 means that your substring starts at index 0. If you want to check only if the string contains a substring, you can use:

~ at the beginning of the string:

my_string = "~ This is a test"
print("~" in my_string) # True
print(my_string.find("~")) # 0 (index)

this means that ~ can be found at index 0 in your string. Since python starts to count indexes from 0, means that ~ is the first character (which is true!)

~ in the middle of the string:

my_string = "This is a ~ test"
print("~" in my_string) # True
print(my_string.find("~")) # 10 (index)

this means that ~ can be found at index 10 in your string. this means that ~ is the 11th character (which is true!)

~ not in the string:

my_string = "This is a test"
print("~" in my_string) # False
print(my_string.find("~")) # -1 (false)

Two ~ in the string:

my_string = "~This is a ~test"
print("~" in my_string) # True
print(my_string.find("~")) # 0 (only the index of the FIRST ~!)

There are many operations you can perform on string.

The tilde operator in Python, (Note that byte-strings [ex: '\xff' ] do not support this operator, even though it is from numpy import NaN import pandas as pd matrix = pd. Python string method find() determines if string str occurs in string, or in a substring of string if starting index beg and ending index end are given. Syntax str.find(str, beg=0, end=len(string)) Parameters. str − This specifies the string to be searched. beg − This is the starting index, by default its 0.


0 means "found at position 0".

-1 means "not found".

All is well.

How to Create Strings with Special Characters in Python, Some strings in Python programming include special characters. grave (`), circumflex (^), umlaut or diaeresis (¨), tilde (~), or ring (̊), represent special spoken sounds, in most cases. You can find a character for just about any need​. Definition and Usage. The find() method finds the first occurrence of the specified value. The find() method returns -1 if the value is not found. The find() method is almost the same as the index() method, the only difference is that the index() method raises an exception if the value is not found.


The function is working alright. Python's indexing works from 0 (not 1). The output of 0 means it found '~' at 0th index. If find does not find a character, it outputs -1.

Python: Get the ASCII value of a character, Write a Python program to get the ASCII value of a character. 126, 176, 7E, 01111110, ~, ~, Equivalency sign - tilde. 127, 177, 7F  Python provides a number of functions for searching strings. Here are the most commonly used functions: count(str, beg= 0, end=len(string)): Counts how many times str occurs in a string. You can limit the search by specifying a beginning index using beg or an ending index using end.


The class str has method find which looks for an occurence of a substring within the string. It returns the position of the found substring. If the substring could not be found, then it returns -1.

In your example tt = "~", the tilde symbol is at position 0. When you run the command tt.find("~"), the tilde is found at position 0 and that value is returned.

Check this example for better understanding:

tt = "The tilde ~ symbol"
tt.find("~")
# 10

The method find accepts one positional argument (the substring to be looked for) and two optional keyword arguments beg and end - the starting and the ending index respectively.

Imagine this case:

tt = "~ where is the ~ symbol ~"
tt.find("~", 1, len(tt)-1)
# 15

Here the first and last character are omitted in the search.

How to handle accented & special character strings in Python., String operations on string array containing strings with accented &/or special characters alongside regular ascii strings can be quiet an annoyance These days I  sub : It’s the substring which needs to be searched in the given string. start : Starting position where sub is needs to be checked within the string. end : Ending position where suffix is needs to be checked within the string. NOTE : If start and end indexes are not provided then by default it takes 0


Index, in string formatting · in struct format strings · operator, [1]. <<. operator, [1]. <<= augmented assignment. <= find() (bytearray method) · (bytes method) · (doctest​. The index () method returns the index of a substring inside the string (if found). If the substring is not found, it raises an exception. The syntax of index () method for string is: str.index (sub [, start [, end]] ) index () Parameters. The index () method takes three parameters: sub - substring to be searched in the string str.


What is tilde (~) operator in Python?, The bitwise operator ~ (pronounced as tilde) is a complement operator. It takes one bit operand and returns its complement. If the operand is 1,  Python 3 - String find() Method - The find() method determines if the string str occurs in string, or in a substring of string if the starting index beg and ending index end are given.


Unicode & Character Encodings in Python: A Painless Guide – Real , In this tutorial, you'll get a Python-centric introduction to character Python's Built​-In Functions; Python String Literals: Ways to Skin a Cat; Other allowed to be represented as it is, but the n with tilde is escaped to "\xc3\xb1" . Python String replace() Method. Description. Python string method replace() returns a copy of the string in which the occurrences of old have been replaced with new, optionally restricting the number of replacements to max. Syntax. Parameters. old − This is old substring to be replaced. new − This is new substring, which would replace old substring.