以整数形式从文件中获取输入

Question

我想从python中int类型的文件中获取数据，但发生错误：

ValueError: invalid literal for int() with base 10: 'from sys import argv\n'

Answer 1

Try:

file_descriptor = open('file.name')
bytes = file_descriptor.read()
try:
    newint=int(bytes)
except Exception as e:
    print(str(e))
print(newint)

this retrieves data from the file, and tries to parse it into an integer format. (and then prints it back out.)