words = "   test     words    "

# Remove end spaces
def remove_end_spaces(string):
    return "".join(string.rstrip())

# Remove first and  end spaces
def remove_first_end_spaces(string):
    return "".join(string.rstrip().lstrip())

# Remove all spaces
def remove_all_spaces(string):
    return "".join(string.split())

# Remove all extra spaces
def remove_all_extra_spaces(string):
    return " ".join(string.split())

# Show results
print(f'"{words}"')
print(f'"{remove_end_spaces(words)}"')
print(f'"{remove_first_end_spaces(words)}"')
print(f'"{remove_all_spaces(words)}"')
print(f'"{remove_all_extra_spaces(words)}"')