Tiingo-Python | "No JSON object could be decoded"

[2firstnames]

• Tiingo Python version: 0.8.0
• Python version: 3.6
• Operating System: Windows 8.1

Description

I have followed examples and am able to download data for some stocks. But the vast majority return the following error:
"No JSON object could be decoded"

What I Did

from tiingo import TiingoClient
from pprint import pprint
import pandas as pd
import datetime
import json

today = datetime.datetime.today().strftime('%Y-%m-%d')
yesterday = datetime.datetime.today() - datetime.timedelta(1)

config = {}
config['session'] = True
config['api_key'] = "MY_API_KEY"
client = TiingoClient(config)

all_tickers = client.list_stock_tickers()
valid_tickers = [] # list of dicts
valid_exchanges = ['OTCMKTS','NYSE','NASDAQ','AMEX']
for ticker in all_tickers:
    if ticker['exchange'] in valid_exchanges:
        valid_tickers.append(ticker)

elligible_tickers = []
for ticker in valid_tickers:
    print(ticker['ticker'])
    try:
        yesterday_df = client.get_dataframe(ticker['ticker'],
                                      frequency='daily',
                                      startDate=yesterday,
                                      endDate=yesterday)

        yesterday_adj_close = yesterday_df['adjClose'].values[0]
        yesterday_volume = yesterday_df['volume'].values[0]

        min_price = 5
        min_volume = 400000

        if yesterday_adj_close > min_price and yesterday_volume > min_volume:
            elligible_tickers.append(ticker)
    except Exception as e:
        print(e)

# Elligible tickers is a list of ticker dictionaries
dataframe = pd.DataFrame(elligible_tickers)
print(dataframe)

[tiingo]

Hi Nick,

To eliminate this possibility,
Are you a subscribed member? Free accounts are limited to 500 tickers.

[2firstnames]

Hi my friend,

I should have specified. Yes I am a paid member. Assume the string “MY_API_KEY” has been replaced with a valid API key.

[hydrosquall]

Hey @2firstnames, thanks for writing in and giving the library a spin!

Would it be possible to share a couple of the tickers which returned this message?

[2firstnames]

My pleasure! Thank you on behalf of all those using it. I will give it a spin later tonight, but when I ran this exact code snippet (sub in my API key) the majority of them ran into this JSON decoding error. Out of over 10K stocks I’d say between 50-150 tickers were returned as having volume > 400k and a price of over $5, which I know for certain is a tiny fraction of the tickers which should have met the criteria. Again il provide the specifics later on!

Thanks.

[2firstnames]

@hydrosquall @tiingo sorry for opening the issue gentlemen, my payment had failed and thus the API key was inactive. All is working beautifully now. Thanks again @hydrosquall for creating the library, we will be in touch :) 👍

[hydrosquall]

@2firstnames - this is good feedback for the library, I've filed an issue (#159) to investigate whether we can surface this information in an error message sooner :)