Evaluate an expression node or a string containing only a Python literal or container display. The string or node provided may only consist of the following Python literal structures: strings, bytes, numbers, tuples, lists, dicts, sets, booleans, None and Ellipsis .

Jan 6, 2021 · Notice that the original variable roll won't be mutated since it is creating a new list. Map. Another way to do the same thing is by using the map function in python. However for efficiency reason, the type of the output is of type Map[str] instead of type List[str]. roll_map = map(str, roll) for x in roll_map: print(x)

Sep 17, 2012 · So, range based for loop in this example , when the python reach the last word of your list, it should'nt add "-" to your concenated_string. If its not last word of your string always append "-" string to your concenated_string variable.

It's pythonic, works for strings, numbers, None and empty string. It's short and satisfies the requirements. If the list is not going to contain numbers, we can use this simpler variation: >>> ','.join(ifilter(lambda x: x, l)) Also this solution doesn't create a new list, but uses an iterator, like @Peter Hoffmann pointed (thanks).

Mar 30, 2010 · To convert a Python string into a list use the str.split method: >>> '1000 2000 3000 4000'.split() ['1000', '2000', '3000', '4000'] split has some options: look them up for advanced uses. You can also read the file into a list with the readlines() method of a file object - it returns a list of lines. For example, to get a list of integers from ...

Python has a built-in string module that has a string of punctuations as an attribute (string.punctuation). One way to get rid of the punctuations is to simply strip them from each word: import string words = [w.strip(string.punctuation) for w in s.split()] # ['Hi', 'these', 'are', 'words', "these're", 'also', 'words']

May 31, 2011 · I'm trying to convert a string to a list of words using python. I want to take something like the following: string = 'This is a string, with words!' Then convert to something like this : list = ['This', 'is', 'a', 'string', 'with', 'words'] Notice the omission of punctuation and spaces. What would be the fastest way of going about this?

python: creating list from string [duplicate] Ask Question Asked 13 years, 7 months ago. Modified 11 years ...

Mar 19, 2019 · In practice, it creates an array of 1-byte wide integers (argument 'B') from your list of integers. The array is then converted to a string as a binary data structure, so the output won't look as you expect (you can fix this point with decode()). Yet, it should be one of the fastest integer-to-string conversion methods and it should save some ...

The syntax for join() method as described in the python documentation is as follows: string_name.join(iterable) Things to be noted: It returns a string concatenated with the elements of iterable. The separator between the elements being the string_name. Any non-string value in the iterable will raise a TypeError