def replace(old_text, new_text, start, end):

start_text = old_text[:start]

if end < (len(old_text) - 1):

end_text = old_text[end + 1:]

else:

end_text = ''

return start_text + new_text + end_text

def is_integer(text):

try:

int(text)

return True

except ValueError:

return False

def unwrap_quotes(string):

if string.startswith('"') and string.endswith('"'):

return unwrap_quotes(string[1:-1])

elif string.startswith("'") and string.endswith("'"):

return unwrap_quotes(string[1:-1])

return string

def strip(value):

if value is None:

return value

if isinstance(value, list):

return [strip(x) for x in value]

if isinstance(value, dict):

result = {}

for k, v in value.items():

result[strip(k)] = strip(v)

return result

if isinstance(value, str):

return value.strip()

return value

def is_blank(value):

if not value:

return True

if not value.strip():

return True

return False

def values_to_string(value):

if not value:

return value

if isinstance(value, dict):

return {k: str(v) for k, v in value.items()}

if isinstance(value, list):

return [str(element) for element in value]

return value