String functions lstrip are not working properly when you have escape sequence

[kirankotari]

BPO	25979
Nosy	@ethanfurman

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2015-12-30.02:39:09.720>
created_at = <Date 2015-12-30.02:11:39.827>
labels = ['invalid', 'type-bug', 'expert-2to3']
title = 'String functions lstrip are not working properly when you have escape sequence'
updated_at = <Date 2015-12-30.02:39:09.706>
user = 'https://bugs.python.org/KiranKotari'

bugs.python.org fields:

activity = <Date 2015-12-30.02:39:09.706>
actor = 'ethan.furman'
assignee = 'none'
closed = True
closed_date = <Date 2015-12-30.02:39:09.720>
closer = 'ethan.furman'
components = ['2to3 (2.x to 3.x conversion tool)']
creation = <Date 2015-12-30.02:11:39.827>
creator = 'Kiran Kotari'
dependencies = []
files = []
hgrepos = []
issue_num = 25979
keywords = []
message_count = 3.0
messages = ['257223', '257224', '257225']
nosy_count = 2.0
nosy_names = ['ethan.furman', 'Kiran Kotari']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue25979'
versions = ['Python 3.5']

[kirankotari]

In this python code I am collecting list of folders present in the given location path with parent folder and print the folder names (output went wrong due to escape sequence values with lstrip.)
Note :
"\a \b \f \r \v \0 \1" are working fine.
"\c \e \n \ne \t \te" went wrong.

Folder Structure :
parent ->
cat
eat
east
next
nest
test

Wrong Output :
Path: .\parent\, List: ['cat', 'st', '', 'st', 'xt', 'st']

[kirankotari]

In this python code I am collecting list of folders present in the given location path with parent folder and print the folder names (output went wrong due to escape sequence values with lstrip.)
Note :
"\a \b \f \r \v \0 \1" are working fine.
"\c \e \n \ne \t \te" went wrong.

Python Code :
import glob as g

class Folders:
    def __init__(self, path, parent_folder_name):
        self.path = path + parent_folder_name + '\\'
        self.parent_folder_name = parent_folder_name

    def showFolders(self):
        folders = [lst.lstrip(self.path) for lst in  g.glob(self.path + '*')]
        print('Path: '+self.path+ ', List: ',folders)
    pass

if __name__ == "__main__":
	obj = Folders(path='.\\', parent_folder_name='parent')
	obj.showFolders()

Folder Structure :
parent ->
cat
eat
east
next
nest
test

Wrong Output :
Path: .\parent\, List: ['cat', 'st', '', 'st', 'xt', 'st']

[ethanfurman]

lstrip() works by removing any of the characters in its argument, in any order; for example:

'catchy'.lstrip('cat')
# 'hy'

'actchy'.lstrip('tac')
# 'hy'

is stripping, from the left, all 'c's and all 'a's and all 't's -- not just the first three, and order does not matter.

The docs: https://docs.python.org/3/library/stdtypes.html?highlight=lstrip#str.lstrip