如何将变量从一个 Python 脚本传递到另一个？

Question

我试图在 Python 3.6.8 上将一个带有文件名/位置的变量从一个 Python 文件传递​​到另一个文件。

我尝试了以下代码，但不起作用：

executor.py（这个文件是第一个文件，由用户运行）我输入code.ntx因为那是我想使用的文件[我不需要把C:\\东西，因为我的文件在同一个文件夹作为 executor.py]：

print('What file would you like to open? (ex. C:\\Users\\JohnDoe\\Documents\\helloworld.ntx): ')
filename = input()
print('Loading ' + filename + '...')

import nitrix001

nitix001.py 代码（以及与此相关的部分）

from __main__ import *

if filename == " ":
    # The user can set this to the name of the file.
    filename = "lang.ntx"
# Opens the actual file. We use this in the 'for' loop.
File = open(f"{filename}", "r")
#
Characters = ''
# Integer that indicates the line of the program the language is reading.
Line = 1
# Variable that checks if the program is currently inside parantheses.
args = False

# Runs a 'for' loop on each line of the file.
for LineData in File:
    print(f'\nRunning Line {Line}: {LineData}')
    if not LineData.startswith('#'):

当我运行那个 executor.py 并用 code.ntx 填写输入时，我收到以下错误：

Traceback (most recent call last):
  File "main.py", line 1, in <module>
    import executor
  File "/home/runner/executor.py", line 16, in <module>
    import nitrix001
  File "/home/runner/nitrix001.py", line 3, in <module>
    if filename == " ":
NameError: name 'filename' is not defined

Answer 1

不要这样做。 构建一个真实的界面并导入它，不要使用import来运行一个可执行脚本。

# executor.py
filename = input("...")

import nitrix001

nitrix001.main(filename)

# nitrix001
def main(filename):
    with open(filename) as f:
        for line in f:
            # do stuff

Answer 2

@威廉

我不知道有什么方法可以完成您想要实现的目标。 我会改用函数

print('What file would you like to open? (ex. C:\\Users\\JohnDoe\\Documents\\helloworld.ntx): ')
filename = input()
print('Loading ' + filename + '...')

from nitrix001 import myfunc
myfunc(filename)

然后在nitix001.py上：

def myfunc(filename)
    if filename == " ":
        # The user can set this to the name of the file.
        filename = "lang.ntx"
    # Opens the actual file. We use this in the 'for' loop.
    File = open(f"{filename}", "r")
    #
    Characters = ''
    # Integer that indicates the line of the program the language is reading.
    Line = 1
    # Variable that checks if the program is currently inside parantheses.
    args = False

    # Runs a 'for' loop on each line of the file.
    for LineData in File:
        print(f'\nRunning Line {Line}: {LineData}')
        if not LineData.startswith('#'):

Answer 3

这通常不是在文件之间传递变量的好习惯，实际上你想要做的是窃取__main__的全局变量，因此与传递相反，并且你得到所有变量而不仅仅是文件名。

您应该做的是导入第一个脚本顶部的第二个文件。 在第二个文件中，有一个带有您希望传入的参数的函数。然后您可以从主脚本中调用该函数。

执行器.py

import nitrix001

filename = input('What file would you like to open? ')
print('Loading ' + filename + '...')

nitrix001.run(filename)

硝基001.py

def run(filename):
    #do work with the file