getting KeyError: '' with request url

Question

have a file tmodule.py contains a dictionary of URL's.when try to call it with specific URL id, get an error. code looks like below:

import pandas as pd
import csv
import requests
def stock(self, stockname="", value=100):
stocknames = {
    "ABAD1": "59612098290740355",
    "ABDI1": "49054891736433700",
}


 urlid = stocknames[stockname]
    url = 'http://.............................&i=' + urlid
    content = requests.get(url)
    with open('out.csv', 'w') as f:
        writer = csv.writer(f)
        for line in content.iter_lines():
            writer.writerow(line.decode('utf-8').split(','))
    df = pd.read_csv('out.csv')
    return (....)

above code has no error but when i try to pass a key like:

import tmodule as tm
st=tm.stock("ABAD1")

got this error :

File "D:\anaconda\envs\geo_env\Lib\site-packages\..........", line 323, in stock  


urlid = stocknames[stockname]

KeyError: ''

it's a long dictionary and i just copy two key and value here

Please, provide minimal reproducible example.

buran
– buran

2021-10-26 19:14:01 +00:00
Commented Oct 26, 2021 at 19:14 — buran
– buran, Commented Oct 26, 2021 at 19:14

buran · Accepted Answer · 2021-10-26 19:18:02Z

1

It looks this is regular function, not a method in a class (as implied by first parameter self). When you pass "ABAD1" as positional argument when call st=tm.stock("ABAD1") it is bind to self and stockname remains with default value of "". Unless you provide a reason for self being first parameter, just remove it.

def stock(stockname="", value=100):

answered Oct 26, 2021 at 19:18

buran

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2 Comments

milad Over a year ago

it's a python module and i installed it on my system and when delete self get another error :

Traceback (most recent call last):   File "D:/site-packages/....py", line 2, in <module>     foolad=tm.stock("FOLD1")   File "D:\asite-packages\\.....py", line 329, in stock     writer.writerow(line.decode('utf-8').split(','))   File "C:\Users\.py", line 19, in encode     return codecs.charmap_encode(input,self.errors,encoding_table)[0] UnicodeEncodeError: 'charmap' codec can't encode character '\u06cc' in position 48: character maps to <undefined>

buran Over a year ago

This is completely different error, not caused by removing self from your function, but how you process the response when write to file. Ask a separate question, providing minimal reproducible example, sample of the response you get, the full traceback, etc.

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