python - 如何自动执行几个相互依赖的 Python 脚本

Question

我正在运行 Ubuntu 14.04 LTS，我有一组 Python 脚本，其中:

• 第一个脚本获取键盘输入，对其进行修改，并将修改后的输出存储在文件中
• 第二个脚本读取第一个脚本生成的输出并获取(额外的)键盘输入，执行操作，并将一些结果存储在第二个文件中
• 等等

为了具体起见，假设我有两个 Python 脚本 1_script.py 和 2_script.py，其源代码如下(在本文末尾)发布)。

我想知道如何在执行以下所有操作的终端中运行单个命令:

1. 执行1_script.py
2. 在 1_script.py 要求键盘输入时提供“hello”
3. 执行 2_script.py
4. 提供'!'当 2_script.py 要求键盘输入时

如果您能就此提出任何建议，我将不胜感激。

1_script.py

"""
This script:
    1) prompts the user to enter a string
    2) performs modifications to the entered string
    3) stores the modified string into a file 
"""

# get user input
user_entry = raw_input('Enter a string: ')

# perform modifications to the input
modified_data = user_entry + '...'

# store the modified input into a file
f = open('output_from_1_script.txt', 'w')
f.write(modified_data)
f.close()

2_script.py

"""
Dependencies:
    1) before executing this script, the script 1_script.py
        has to have been successfully run

This script:
    1) reads the output generated by 1_script.py
    2) modifies the read data with a user-supplied input
    3) prints the modified data to the screen
"""

# reads the output generated by 1_script.py
f = open('output_from_1_script.txt', 'r')
pregenerated_data = f.readline()
f.close()

# modifies the read data with a user-supplied input
user_input = raw_input('Enter an input with which to modify the output generated by 1_script.py: ')
modified_data = pregenerated_data + user_input

print modified_data

Answer 1

创建一个可以存放所有文件的目录 您可以使用模块系统或将每个函数包含到同一个文件中 进入目录，执行下面定义的mainfile.py

1_script.py

"""
This script:
    1) prompts the user to enter a string
    2) performs modifications to the entered string
    3) stores the modified string into a file 
"""
def get_input():
    # get user input
    user_entry = raw_input('Enter a string: ')

    # perform modifications to the input
    modified_data = user_entry + '...'

    # store the modified input into a file
    f = open('output_from_1_script.txt', 'w')
    f.write(modified_data)
    f.close()

下一个脚本将放在下一个文件中

2_script.py

"""
Dependencies:
    1) before executing this script, the script 1_script.py
        has to have been successfully run

This script:
    1) reads the output generated by 1_script.py
    2) modifies the read data with a user-supplied input
    3) prints the modified data to the screen
"""
def post_input():
    # reads the output generated by 1_script.py
    f = open('output_from_1_script.txt', 'r')
    pregenerated_data = f.readline()
    f.close()

    # modifies the read data with a user-supplied input
    user_input = raw_input('Enter an input with which to modify the output     generated by 1_script.py: ')
    modified_data = pregenerated_data + user_input

    print modified_data

第三个脚本 主文件.py

from 1_script import get_input
from 2_script import post_input

if __name__=='__main__':
    get_input()
    post_input()
    print "success"