在文件夾中查找文件名並匹配到Excel表

Question

我需要從給定文件夾和子文件夾中提取文件名（圖號）。然後，我需要對照包含圖紙編號列表和相應圖紙描述的Excel文件，交叉查找所找到的圖形編號列表。輸出需要是包含兩列的Excel表格，用於圖號和圖形說明。在20個文件夾和子文件夾中有大約500個圖紙需要遍歷。

Answer 1

walk from os模塊可能會很有幫助，因爲csv模塊可以讓excel讀取文件。沒有更多的細節，我只能給你一個粗略的骨架。在下文中，root是包含所有你想要搜索的目錄的頂級目錄：

import os 
import csv 

#The below is sample code for reading your existing csv files. 
#It will vary based on their exact specifications 

with open('myfile.csv', newline='') as f: 
    reader = csv.reader(f) 
    d = {line[0]: line[1] for line in reader} 

#Next is code for opening the output file, 
#then going through all the filenames in our directory 
#For each filename, we look it up in the dictionary from earlier 
# then write that pair to the output file 

with open('output.csv', 'w+', newline='') as out: 
    writer = csv.writer(out) 
    for dirpath, dirnames, filenames in os.walk('root'): 
     for filename in filenames: 
      writer.writerow([filename, d[filename]) 

我建議你查查csv和Python官方文檔os.walk