[英]Append new element in row and save CSV [python]
我有一個看起來像這樣的 csv:
nom_ele_title,nom_ele_type,nom_ele_parent_id
Aspirateur,2,PLACARDS
COIN CUISINE,1,None
Plaques vitro,2,EQUIPEMENTS
Micro-ondes,2,EQUIPEMENTS
USTENSILES
Tabourets bar x 3
Horloge
Pack vaisselle
Pack verrerie
我希望當元素沒有“nom_ele_type”是“nom_ele_parent_id”時,“nom_ele_type”加1,“nom_ele_parent_id”加1,如下所示:
nom_ele_title,nom_ele_type,nom_ele_parent_id
Aspirateur,2,PLACARDS
COIN CUISINE,1,None
Plaques vitro,2,EQUIPEMENTS
Micro-ondes,2,EQUIPEMENTS
USTENSILES,1,Yes
Tabourets bar x 3,1,Yes
Horloge,1,Yes
Pack vaisselle,1,Yes
Pack verrerie,1,Yes
我認為可以這樣做:
with open("./missed.csv") as f:
reader = csv.reader(f)
for row in reader:
if len(row) == 1:
row.append('1')
row.append('Yes')
但csv沒有保存...
要保存更改的 CSV 數據,您需要創建一個 CSV Writer 並將行顯式寫入其中。
嘗試:
import csv
with open("missed.csv", "r") as fin, open("out.csv", "w", newline='') as fout:
reader = csv.reader(fin)
writer = csv.writer(fout) # added
for row in reader:
if len(row) == 1:
row.append('1')
row.append('Yes')
writer.writerow(row) # added
輸出:
nom_ele_title,nom_ele_type,nom_ele_parent_id
Aspirateur,2,PLACARDS
COIN CUISINE,1,None
Plaques vitro,2,EQUIPEMENTS
Micro-ondes,2,EQUIPEMENTS
USTENSILES,1,Yes
Tabourets bar x 3,1,Yes
Horloge,1,Yes
Pack vaisselle,1,Yes
Pack verrerie,1,Yes
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