wrong output in a python code for search and count the scanned barcodes in excel

Question

i have a xlsx file that it’s "C" Column contains barcodes of things and i wanna to insert the barcodes to count them (number of each barcode will put in corresponding cell in "G" column)
the main issue is :
i want to receive a message that shown "Barcode not found" when the inserted barcode doesn’t exist in any cells of column "C"

but i will give the output : "Barcode not found" when i insert barcodes (for those which exist in "C" column or others Which aren,t).
i like to get "Barcode not found" when the inserted barcode doesn’t exist in C column and continue asking for input

but i have this error when i insert a barcode that i’m sure exist :

any suggestions?

Asked By: Curious guy

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Source

Answer 1

I think this will work:

from numpy import int64 # handle large integers
import pandas as pd
from io import StringIO
import time


# df = pd.read_csv(StringIO(inp),sep=';')
df = pd.read_excel(r'C:Usersdcg601Downloadstest2.xlsx', header=None)
# df[2] = df[2].astype('int') # need to do that to enable comparisons
# df.iloc[:2]
df.iloc[:,6] = df.iloc[:,6].fillna(0)
df.iloc[:,2] = df.iloc[:,2].astype('str')
df.iloc[:,2] = df.iloc[:,2].str.strip('u202a') # strips the right to left character
df.iloc[:,2] = df.iloc[:,2].astype('int64') # necessary cause numbers are too large

n = input("SCAN Barcode : ")
n = int64(n)
while n != 0 :
    if(n in df[2].values):
        df.loc[df[2]==int64(n),6]+=1
        df.to_excel(r'C:Usersdcg601Downloadstest2.xlsx',index=False,header=False)
    else :
        print("Barcode not found")
        time.sleep(5)
    print()
    n = input("SCAN Barcode : ")
    n = int64(n)

Notes:

df[2] = df[2].astype('int') otherwise comparisons fail. pandas default values are strings if I am not wrong,
After inputting you should cast ton integers with n = int(n), otherwise n from the input is string,
The if condition should check n in df[column].values and not just n in df[column].

Edit: added some ilocs but theyr probably not much necessary, made some strips and conversions to and from str

Answered By: Yannis P.

wrong output in a python code for search and count the scanned barcodes in excel

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