通過嵌套表/ spreadhseet迭代

Question

不知道如何去入門。我有許多製表符分隔的文件，我希望能夠放入數據庫。但困難的是，桌子並沒有以最好的方式擺放。例如，父行將會被指定爲字母（D），那麼在該父母下的行對應於父母，直到下一個D行被列出爲止

理想情況下，我希望所有子行在同一行家長。爲了把它放入一個數據庫和查詢結果（除非有另一種方式）

這裏是鏈接到的數據：http://www.gasnom.com/ip/vector/archive.cfm?type=4

更好的數據的可視化表示之前有人提到它，我不能刮HTML數據，因爲這是唯一具有相應網站的數據文件。

http://www.vector-pipeline.com/Informational-Postings/Index-of-Customers.aspx

Answer 1

我認爲這有效。它只是在「父」行列表中的每個「父」行末尾添加一列「子」行。

customer_file = open('index_of_customers.txt', 'r') # you should of course do more try-except stuff in your script 
database = []          # all data ends up here 
for each_line in customer_file:      # reads one line at a time 
    each_line = each_line.strip('\n')    # removes newlines 
    each_line = each_line.split('\t')    # split the line of text into a list. This should save any empty columns aswell 
    if each_line[0] == 'D':       # if line starts with a single D 
     each_line.append([])      # add a list for the other lines at the end of the D line 
     database.append(each_line)    # add a D line to the "database" as a list 
    else:           # if line don't start with a single D 
     if len(database):       # the first line is not a D line, so we need to check if the database is empty to avoid errors 
      database[-1][-1].append(each_line)  # add the line to the last D line's list. 
for each_D_line in database:      # prints out the database in an ugly way 
    print(str(each_D_line[:-1]))     # first the D lines 
    for each_other_line in each_D_line[-1]: 
     print('\t' + str(each_other_line))  # then each other line