raeq

import nltk


def tokenize_text(input_str: str = "") -> list:
    return nltk.wordpunct_tokenize(input_str)


assert tokenize_text("Good muffins cost $3.88\nin New York.") == [
    "Good",
    "muffins",

raeq

import base64


def encode_b64(input_string: str = "") -> object:
    return base64.b64encode(input_string.encode("utf-8"))


def decode_b64(input_string: str = "") -> object:
    return base64.b64decode(input_string).decode("utf-8")

raeq

import urllib.parse


def encode_url(url: str = "") -> str:
    return urllib.parse.quote(url)


def decode_url(url: str = "") -> str:
    return urllib.parse.unquote(url)

raeq

import string


def remove_punctuation(input_string: str = "") -> str:
    return input_string.translate(str.maketrans("", "", string.punctuation))


assert remove_punctuation("Hello!") == "Hello"
assert remove_punctuation("He. Saw! Me?") == "He Saw Me"

raeq

import subprocess
import ast


def exec_string(input_string: str = "") -> str:
    result = subprocess.getoutput(input_string)
    return result


def eval_string(input_string: str = "") -> str:

raeq

def strip_it(input_string: str) -> tuple:

    return (input_string.lstrip(), input_string.rstrip(), input_string.strip())


left, right, full = strip_it("  A padded  string   ")
assert left == "A padded  string   "
assert right == "  A padded  string"
assert full == "A padded  string"

raeq

def is_null_or_blank(input_string: str = "") -> bool:

    if input_string: 
        if input_string.strip():
            return False
    return True


assert is_null_or_blank(None) == True
assert is_null_or_blank("") == True

raeq

def file_to_list(filename: str = "") -> list:

    with open(filename, "r") as f:
        lines = list(f)

    return lines


assert len(file_to_list("<PATH TO FILE>")) == LINE_COUNT

raeq

def from_list(line: list = []) -> str:

    ret = ", ".join(e for e in line)
    return ret


assert from_list(["a", "b", "c"]) == "a, b, c"
assert from_list(["one", "two", "three"]) == "one, two, three"

raeq

def from_csv_line(line: str = "") -> list:

    return line.split(",")


assert from_csv_line("a,b,c") == ["a", "b", "c"]