concat zwei Spalten und speichern in einer neuen Spalte in einem csv

Question

Ich bekomme nicht die gewünschte erwartete Ausgabe.Ich muss "itemnumber" Spalte mit "Bildname" Spalte und speichern Sie in eine andere Spalte "Bild" in diesem CSV. ZB B001_B001. Es erstellt auch ein Duplikat Bild "B001_B001.jpg" im Bildordner.

Meine Eingabe ist:

ItemNumber UPC Keyword ImageName ImageWChain Description  
0  B001 123  XYZ  B001  B001  Test1 
1  B002 456  GDH  B002  B002  Test2 
2  B003 789  GFR  B003  B003  Test3 

und meine erwartete Ausgabe ist:

ItemNumber UPC Keyword ImageName ImageWChain Description  Image 
0  B001 123  XYZ  B001  B001  Test1 B001_B001 
1  B002 456  GDH  B002  B002  Test2 B002_B002 
2  B003 789  GFR  B003  B003  Test3 B003_B003 

Dies ist, was ich bisher:

import csv 
import os 
from os.path import splitext  # splits name & extension from a file 
import shutil      # making a duplicate copy of a file 
import logging 

class Image: 
    def image_fix(self): 

     #open and read csv 
     with open('rosary.csv') as csvfile: 

     #create list for sku, old_imagename_column_1, old_imagename_column_1 
     #and renamed new_imagename 
       keyList = []      #for ItemNumber 
       itemList = []      #for ImageName 
       itemList1 = []     #for ImageWChain 
       renamedList = []     #for Renamed NEW_ImageName 

       spamreader = csv.reader(csvfile, delimiter=",") 

     #storing all the columns into list 
       for row in spamreader: 
        keyList.append(row[0]) 
        itemList.append(row[3]) 
        itemList1.append(row[4]) 

        renamedList.append(row[6]) 

     # processing for ImageName 
     for item in enumerate(itemList): 
      oldFileName = name 
      newFileName = '{}_{}{}'.format(name, keyList[item[0]]) 


      # check if the image file existsin image folder for ImageName column 

      if (os.path.isfile(oldFileName)): 

        shutil.copy2(oldFileName, newFileName)  #make a duplicate image of every itemname 
        renamedList[item[0]] = '{}_{}{}'.format(oldFileName, keyList[item[0]]) 


      # write the final output in new csv 
      with open('rosary.csv','wb') as my_csv: 
       csvWriter = csv.writer(my_csv,delimiter=',') 
       for row in zip(keyList, itemList, itemList1, renamedList): 
        # printing row in order 
        print(row[0] + '\t' + '\t' + row[3] + '\t' + '\t' + 
          row[4] + '\t' + '\t' + row[6]) 
        csvWriter.writerow(row) 

if __name__=="__main__": 
    obj = Image() 
    obj.image_fix() 

Answer 1

Wenn Sie Pandas verwenden können:

import pandas as pd 

df = pd.read_csv('rosary.csv') 
df['Image'] = df.ImageName + "_" + df.ImageWChain 
df.to_csv('rosary.csv') 

>>> df 
     Unnamed: 0 Description ImageName ImageWChain ItemNumber Keyword UPC  Image 
0   0  Test1  B001  B001  B001  XYZ 123 B001_B001 
1   1  Test2  B002  B002  B002  GDH 456 B002_B002 
2   2  Test3  B003  B003  B003  GFR 789 B003_B003 

Um ein neues Bild Kopie:

for old_image, new_image in zip(df.ImageName, df.Image): 
    if (os.path.isfile(old_image)): 
     shutil.copy2(old_image, new_image)