def lstrip(self, chars=None): # real signature unknown; restored from __doc__
  """
  S.lstrip([chars]) -> str
  
  Return a copy of the string S with leading whitespace removed.
  If chars is given and not None, remove characters in chars instead.
  """
  return ""

"重庆重庆师范大学".lstrip("重庆")

def split(self, instring, maxsplit=_MAX_INT, includeSeparators=False):
  """
  Generator method to split a string using the given expression as a separator.
  May be called with optional C{maxsplit} argument, to limit the number of splits;
  and the optional C{includeSeparators} argument (default=C{False}), if the separating
  matching text should be included in the split results.
  
  Example::    
    punc = oneOf(list(".,;:/-!"))
    print(list(punc.split("This, this")))
  prints::
    ['This', ' this', '', ' this sentence', ' is badly punctuated', '']
  """
  splits = 0
  last = 0
  for t,s,e in self.scanString(instring, maxMatches=maxsplit):
    yield instring[last:s]
    if includeSeparators:
      yield t[0]
    last = e
  yield instring[last:]

def replace(self, old, new, count=None):
  """
  For each element in `self`, return a copy of the string with all
  occurrences of substring `old` replaced by `new`.

  See also
  --------
  char.replace

  """
  return asarray(replace(self, old, new, count))

# -*- coding: utf-8 -*-
"""
Author: ZhenYuSha
CreateTime: 2020-2-26
Info: 去除字符串中 首个指定字符串
"""


def run(source, key):
  tmp_ls = source.lstrip(key)
  tmp_re = source.replace(key, "", 1)
  tmp_sp = source.split(key, 1)[1]
  return tmp_ls, tmp_re, tmp_sp


if __name__ == '__main__':
  tmp_1, tmp_2, tmp_3 = run("大坪英利国际8号楼88－88号重庆汉乔科技有限公司大坪英利国际8号楼", "大坪英利国际8号楼")
  print("test_1 lstrip:", tmp_1)
  print("test_1 replace:", tmp_2)
  print("test_1 split:", tmp_3)

  tmp_1, tmp_2, tmp_3 = run("重庆重庆师范大学", "重庆")
  print("test_2 lstrip:", tmp_1)
  print("test_2 replace:", tmp_2)
  print("test_2 split:", tmp_3)