python com exemplo
with open('output.txt', 'w') as f:
f.write('Hi there!')
Navid Moghadam Nejad
with open('output.txt', 'w') as f:
f.write('Hi there!')# a simple file writer object
class MessageWriter(object):
def __init__(self, file_name):
self.file_name = file_name
def __enter__(self):
self.file = open(self.file_name, 'w')
return self.file
def __exit__(self):
self.file.close()
# using with statement with MessageWriter
with MessageWriter('my_file.txt') as xfile:
xfile.write('hello world')