Python安全开关文件的两种方式

以下代码经Python3.3测试。

1、

try:
    file = open('config.ini', 'w')
    print("It's a text file", file=file)
except IOError as err:
    print('File error: ' + str(err))
finally:
    if 'file' in locals():
        file.close()

2、

try:
    with open('config.txt', 'w') as file:
        print("It's a text file", file=file)
except IOError as err:
    print('File error: ' + str(err))

相关阅读：Python按行读取文件

***