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To detect whether a python string ends with a particular substring, say ".txt", there is a convenient built-in python string method;
if file_string.endswith(".txt"):
I would like to to detect whether a python string begins with a particular substring, say "begin_like_this". I am not able find a convenient method that I can use like this;
if file_string.beginswith("begin_like_this"):
I am using Python 3.6.
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Python String startswith() The startswith() method returns True if a string starts with the specified prefix(string). If not, it returns False .
The startswith() string method checks whether a string starts with a particular substring. If the string starts with a specified substring, the startswith() method returns True; otherwise, the function returns False.
If we want to know whether a given string has repeated characters, the simplest way is to use the existing method of finding first occurrence from the end of the string, e.g. lastIndexOf in java. In Python, the equivalence would be rfind method of string type that will look for the last occurrence of the substring.
You're looking for str.startswith
if file_string.startswith("begin_like_this"):
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