如果您使用os.system() 或使用模块subprocess 运行脚本,则不能使用其他脚本中的变量。它们作为独立的进程运行,不能共享变量(或内存中的数据)
您只能发送一些文本值作为参数
os.system('NoShow_Calc.py ' + booked_file_path)
然后您可以使用sys.argv 将其放入NoShow_Calc
import pandas as pd
import sys
booked_file_path = sys.argv[1]
booked = pd.read_csv(booked_file_path, parse_dates=['Appointment Date'])
arrived = pd.read_csv(arrived_file_path, parse_dates=['Appointment Date'])
vlookup = pd.read_excel(vlookup_file_path)
如果您需要其他变量,那么您必须以相同的方式发送其他值
os.system('NoShow_Calc.py ' + booked_file_path + ' ' + other_filename)
和
booked_file_path = sys.argv[1]
other_filename = sys.argv[2]
# etc.
但是使用os.system() 你不能将结果booked, arrived, vlookup 从NoShow_Calc 发送到NoShowGUI。
您可以使用subprocess 来执行此操作,但它只能作为文本发送 - 所以NoShow_Calc 必须使用print() 来显示所有结果,NoShowGUI 必须将此文本解析为预期的结构 - 即.列表、字典、DataFrame
您最好使用import 从NoShow_Calc.py 加载代码,然后所有代码在同一个进程中运行,因此所有代码都可以访问相同的变量 - 它不需要转换为文本并从文本返回.
为了让它更好,我把代码放在函数中
import pandas as pd
def my_function(booked_file_path, arrived_file_path, vlookup_file_path):
booked = pd.read_csv(booked_file_path, parse_dates=['Appointment Date'])
arrived = pd.read_csv(arrived_file_path, parse_dates=['Appointment Date'])
vlookup = pd.read_excel(vlookup_file_path)
return booked, arrived, vlookup
然后在NoShowGUI 中你可以导入它并像任何其他函数一样使用
from NoShow_Calc import my_function
booked, arrived, vlookup = my_function(booked_file_path, arrived_file_path, vlookup_file_path)
编辑:
我编写了最少的工作代码。我把它减少到只有一个文件名。
NoShow_Calc.py
import pandas as pd
def calc(booked_file_path): #, arrived_file_path, vlookup_file_path):
booked = pd.read_csv(booked_file_path, parse_dates=['Appointment Date'])
#arrived = pd.read_csv(arrived_file_path, parse_dates=['Appointment Date'])
#vlookup = pd.read_excel(vlookup_file_path)
return booked #, arrived, vlookup
NoShowGUI.py
import tkinter as tk
from tkinter.filedialog import askopenfilename # instead of `askopenfile`
# adding directory with this script to `sys.path` before `import NoShow_Calc`
# to make sure that `import` will search `NoShow_Calc.py` in correct folder even when GUI will be run from different folder
import os
import sys
HOME_DIR = os.path.dirname(os.path.abspath(__file__))
sys.path.append(HOME_DIR)
import NoShow_Calc
print('HOME_DIR:', HOME_DIR)
def select_filename():
global booked_file_path # inform function that it has to assign value to external/global variable
text_log.insert('end', 'Selecting ...\n')
# use `askopenfilename` instead of `askopenfile`
# because I need only filename, not opened file (pandas will open it on its own)
booked_file_path = askopenfilename(parent=root,
title='Choose a file',
#initialdir='/home/furas',
filetypes=[('CSV file', '*.csv')])
if booked_file_path:
text_log.insert('end', f'Selected: {booked_file_path}\n')
else:
text_log.insert('end', f'Not selected\n')
def run():
text_log.insert('end', "Calculating...\n")
if booked_file_path is None:
text_log.insert('end', "File booked_file_path not selected !!!")
return
#elif arrived_file_path is None:
# text_log.insert('end', "File arrived_file_path not selected !!!")
# return
#elif vlookup_file_path is None:
# text_log.insert('end', "File vlookup_file_path not selected !!!")
# return
else:
root.update() # force tkinter to update text in text_log at once (not when it exits function `run`)
result = NoShow_Calc.calc(booked_file_path)# , arrived_file_path, vlookup_file_path)
text_log.insert('end', "Result:\n")
text_log.insert('end', str(result.head()) + "\n")
# --- main ---
booked_file_path = None # default value at start (so in `run` I can check `None` to see if I selecte filename)
#arrived_file_path = None
#vlookup_file_path = None
root = tk.Tk()
text_log = tk.Text(root)
text_log.grid(column=0, row=0)
select_btn = tk.Button(root, text="Select File Name", command=select_filename)
select_btn.grid(column=0, row=1)
calculate_btn = tk.Button(root, text="Calculate", command=run)
calculate_btn.grid(column=0, row=2)
root.mainloop()