Tutorial crashes

[dmoklaf]

Describe bug

This tutorial code crashes now:

import yfinance
ticker = yfinance.Ticker("MSFT")
ticker.info

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[1], line 3
      1 import yfinance
      2 ticker = yfinance.Ticker("MSFT")
----> 3 ticker.info

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/ticker.py:142, in Ticker.info(self)
    140 @property
    141 def info(self) -> dict:
--> 142     return self.get_info()

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/base.py:1736, in TickerBase.get_info(self, proxy)
   1734 def get_info(self, proxy=None) -> dict:
   1735     self._quote.proxy = proxy
-> 1736     data = self._quote.info
   1737     return data

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/scrapers/quote.py:572, in Quote.info(self)
    569 @property
    570 def info(self) -> dict:
    571     if self._info is None:
--> 572         self._fetch(self.proxy)
    573         self._fetch_complementary(self.proxy)
    575     return self._info

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/scrapers/quote.py:602, in Quote._fetch(self, proxy)
    600 modules = ','.join(modules)
    601 params_dict = {"modules": modules, "ssl": "true"}
--> 602 result = self._data.get_raw_json(
    603     _BASIC_URL_ + f"/{self._symbol}", params=params_dict, proxy=proxy
    604 )
    605 result["quoteSummary"]["result"][0]["symbol"] = self._symbol
    606 query1_info = next(
    607     (info for info in result.get("quoteSummary", {}).get("result", []) if info["symbol"] == self._symbol),
    608     None,
    609 )

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/data.py:395, in YfData.get_raw_json(self, url, user_agent_headers, params, proxy, timeout)
    393 def get_raw_json(self, url, user_agent_headers=None, params=None, proxy=None, timeout=30):
    394     utils.get_yf_logger().debug(f'get_raw_json(): {url}')
--> 395     response = self.get(url, user_agent_headers=user_agent_headers, params=params, proxy=proxy, timeout=timeout)
    396     response.raise_for_status()
    397     return response.json()

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/utils.py:108, in log_indent_decorator.<locals>.wrapper(*args, **kwargs)
    105 logger.debug(f'Entering {func.__name__}()')
    107 with IndentationContext():
--> 108     result = func(*args, **kwargs)
    110 logger.debug(f'Exiting {func.__name__}()')
    111 return result

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/data.py:346, in YfData.get(self, url, user_agent_headers, params, proxy, timeout)
    343 if 'crumb' in params:
    344     raise Exception("Don't manually add 'crumb' to params dict, let data.py handle it")
--> 346 cookie, crumb, strategy = self._get_cookie_and_crumb()
    347 if crumb is not None:
    348     crumbs = {'crumb': crumb}

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/utils.py:108, in log_indent_decorator.<locals>.wrapper(*args, **kwargs)
    105 logger.debug(f'Entering {func.__name__}()')
    107 with IndentationContext():
--> 108     result = func(*args, **kwargs)
    110 logger.debug(f'Exiting {func.__name__}()')
    111 return result

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/data.py:322, in YfData._get_cookie_and_crumb(self, proxy, timeout)
    319         cookie, crumb = self._get_cookie_and_crumb_basic(proxy, timeout)
    320 else:
    321     # Fallback strategy
--> 322     cookie, crumb = self._get_cookie_and_crumb_basic(proxy, timeout)
    323     if cookie is None or crumb is None:
    324         # Fail
    325         self._set_cookie_strategy('csrf', have_lock=True)

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/utils.py:108, in log_indent_decorator.<locals>.wrapper(*args, **kwargs)
    105 logger.debug(f'Entering {func.__name__}()')
    107 with IndentationContext():
--> 108     result = func(*args, **kwargs)
    110 logger.debug(f'Exiting {func.__name__}()')
    111 return result

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/data.py:213, in YfData._get_cookie_and_crumb_basic(self, proxy, timeout)
    211 @utils.log_indent_decorator
    212 def _get_cookie_and_crumb_basic(self, proxy, timeout):
--> 213     cookie = self._get_cookie_basic(proxy, timeout)
    214     crumb = self._get_crumb_basic(proxy, timeout)
    215     return cookie, crumb

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/data.py:157, in YfData._get_cookie_basic(self, proxy, timeout)
    154     utils.get_yf_logger().debug('reusing cookie')
    155     return self._cookie
--> 157 self._cookie = self._load_cookie_basic()
    158 if self._cookie is not None:
    159     return self._cookie

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/data.py:143, in YfData._load_cookie_basic(self)
    142 def _load_cookie_basic(self):
--> 143     cookie_dict = cache.get_cookie_cache().lookup('basic')
    144     if cookie_dict is None:
    145         return None

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/cache.py:362, in _CookieCache.lookup(self, strategy)
    360     data =  _CookieSchema.get(_CookieSchema.strategy == strategy)
    361     cookie = _pkl.loads(data.cookie_bytes)
--> 362     return {'cookie':cookie, 'age':_datetime.datetime.now()-data.fetch_date}
    363 except _CookieSchema.DoesNotExist:
    364     return None

TypeError: unsupported operand type(s) for -: 'datetime.datetime' and 'str'

Simple code that reproduces your problem

See above

Debug log

DEBUG    get_raw_json(): https://query2.finance.yahoo.com/v10/finance/quoteSummary/MSFT
DEBUG    Entering get()
DEBUG     url=https://query2.finance.yahoo.com/v10/finance/quoteSummary/MSFT
DEBUG     params={'modules': 'financialData,quoteType,defaultKeyStatistics,assetProfile,summaryDetail', 'ssl': 'true'}
DEBUG     Entering _get_cookie_and_crumb()
DEBUG      cookie_mode = 'basic'
DEBUG      Entering _get_cookie_and_crumb_basic()
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[3], line 3
      1 import yfinance
      2 ticker = yfinance.Ticker("MSFT")
----> 3 ticker.info

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/ticker.py:142, in Ticker.info(self)
    140 @property
    141 def info(self) -> dict:
--> 142     return self.get_info()

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/base.py:1736, in TickerBase.get_info(self, proxy)
   1734 def get_info(self, proxy=None) -> dict:
   1735     self._quote.proxy = proxy
-> 1736     data = self._quote.info
   1737     return data

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/scrapers/quote.py:572, in Quote.info(self)
    569 @property
    570 def info(self) -> dict:
    571     if self._info is None:
--> 572         self._fetch(self.proxy)
    573         self._fetch_complementary(self.proxy)
    575     return self._info

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/scrapers/quote.py:602, in Quote._fetch(self, proxy)
    600 modules = ','.join(modules)
    601 params_dict = {"modules": modules, "ssl": "true"}
--> 602 result = self._data.get_raw_json(
    603     _BASIC_URL_ + f"/{self._symbol}", params=params_dict, proxy=proxy
    604 )
    605 result["quoteSummary"]["result"][0]["symbol"] = self._symbol
    606 query1_info = next(
    607     (info for info in result.get("quoteSummary", {}).get("result", []) if info["symbol"] == self._symbol),
    608     None,
    609 )

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/data.py:395, in YfData.get_raw_json(self, url, user_agent_headers, params, proxy, timeout)
    393 def get_raw_json(self, url, user_agent_headers=None, params=None, proxy=None, timeout=30):
    394     utils.get_yf_logger().debug(f'get_raw_json(): {url}')
--> 395     response = self.get(url, user_agent_headers=user_agent_headers, params=params, proxy=proxy, timeout=timeout)
    396     response.raise_for_status()
    397     return response.json()

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/utils.py:108, in log_indent_decorator.<locals>.wrapper(*args, **kwargs)
    105 logger.debug(f'Entering {func.__name__}()')
    107 with IndentationContext():
--> 108     result = func(*args, **kwargs)
    110 logger.debug(f'Exiting {func.__name__}()')
    111 return result

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/data.py:346, in YfData.get(self, url, user_agent_headers, params, proxy, timeout)
    343 if 'crumb' in params:
    344     raise Exception("Don't manually add 'crumb' to params dict, let data.py handle it")
--> 346 cookie, crumb, strategy = self._get_cookie_and_crumb()
    347 if crumb is not None:
    348     crumbs = {'crumb': crumb}

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/utils.py:108, in log_indent_decorator.<locals>.wrapper(*args, **kwargs)
    105 logger.debug(f'Entering {func.__name__}()')
    107 with IndentationContext():
--> 108     result = func(*args, **kwargs)
    110 logger.debug(f'Exiting {func.__name__}()')
    111 return result

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/data.py:322, in YfData._get_cookie_and_crumb(self, proxy, timeout)
    319         cookie, crumb = self._get_cookie_and_crumb_basic(proxy, timeout)
    320 else:
    321     # Fallback strategy
--> 322     cookie, crumb = self._get_cookie_and_crumb_basic(proxy, timeout)
    323     if cookie is None or crumb is None:
    324         # Fail
    325         self._set_cookie_strategy('csrf', have_lock=True)

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/utils.py:108, in log_indent_decorator.<locals>.wrapper(*args, **kwargs)
    105 logger.debug(f'Entering {func.__name__}()')
    107 with IndentationContext():
--> 108     result = func(*args, **kwargs)
    110 logger.debug(f'Exiting {func.__name__}()')
    111 return result

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/data.py:213, in YfData._get_cookie_and_crumb_basic(self, proxy, timeout)
    211 @utils.log_indent_decorator
    212 def _get_cookie_and_crumb_basic(self, proxy, timeout):
--> 213     cookie = self._get_cookie_basic(proxy, timeout)
    214     crumb = self._get_crumb_basic(proxy, timeout)
    215     return cookie, crumb

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/data.py:157, in YfData._get_cookie_basic(self, proxy, timeout)
    154     utils.get_yf_logger().debug('reusing cookie')
    155     return self._cookie
--> 157 self._cookie = self._load_cookie_basic()
    158 if self._cookie is not None:
    159     return self._cookie

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/data.py:143, in YfData._load_cookie_basic(self)
    142 def _load_cookie_basic(self):
--> 143     cookie_dict = cache.get_cookie_cache().lookup('basic')
    144     if cookie_dict is None:
    145         return None

File /opt/homebrew/Caskroom/mambaforge/base/envs/work/lib/python3.11/site-packages/yfinance/cache.py:362, in _CookieCache.lookup(self, strategy)
    360     data =  _CookieSchema.get(_CookieSchema.strategy == strategy)
    361     cookie = _pkl.loads(data.cookie_bytes)
--> 362     return {'cookie':cookie, 'age':_datetime.datetime.now()-data.fetch_date}
    363 except _CookieSchema.DoesNotExist:
    364     return None

TypeError: unsupported operand type(s) for -: 'datetime.datetime' and 'str'

Bad data proof

No response

yfinance version

0.2.32 (pip installed directly from Github GIT repository)

Python version

3.11.6

Operating system

MacOS Sonoma 14.1.1

[bot-unit]

Where are you from? Which country?

[dmoklaf]

France. I could try through proxies if it can help.

[NinoNinov]

Hello,

I have the same error message, when try to use ticker.info functionality. Even after the last update from 6 Dec (0.2.33) the issue still exisit. I am from Bulgaria and do not use VPN, could you give some info does it possible to fix the issues locally using VPN or other option.

[bot-unit]

@NinoNinov
try, please:

pip uninstall yfinance
pip install yfinance --upgrade --no-cache-dir

and remove yfinance.cache if it exists

[ValueRaider]

and remove yfinance.cache if it exists

I prefer they keep cache and debug the error. What is the string?

[dmoklaf]

2 feedbacks:

• @NinoNinov your pip deinstall/reinstall doesn't improve the situation, same error. I don't use any disk cache (so I assume by default there is none, right?)
• @ValueRaider, the data.fetch_date string is "2023-11-21T11:32:20.866294" so it represents a valid date but, being a string, python refuses to "add" it to a datetime.datetime. I am not familiar with yfinance internals but I assume there is a type issue with the data.fetch_date field

[ValueRaider]

Sounds easy to fix. #1084

[NinoNinov]

and remove yfinance.cache if it exists

I prefer they keep cache and debug the error. What is the string?

The script is from public example. Is this bug general or only happen to me and dmoklaf?

import yfinance as yf

msft = yf.Ticker("MSFT")

# get all stock info
msft.info

# get historical market data
hist = msft.history(period="1mo")

and the issues is:

HTTPError                                 Traceback (most recent call last)
Untitled-1.ipynb Cell 1 line 6
      [3](vscode-notebook-cell:Untitled-1.ipynb?jupyter-notebook#W1sdW50aXRsZWQ%3D?line=2) msft = yf.Ticker("MSFT")
      [5](vscode-notebook-cell:Untitled-1.ipynb?jupyter-notebook#W1sdW50aXRsZWQ%3D?line=4) # get all stock info
----> [6](vscode-notebook-cell:Untitled-1.ipynb?jupyter-notebook#W1sdW50aXRsZWQ%3D?line=5) msft.info
      [8](vscode-notebook-cell:Untitled-1.ipynb?jupyter-notebook#W1sdW50aXRsZWQ%3D?line=7) # get historical market data
      [9](vscode-notebook-cell:Untitled-1.ipynb?jupyter-notebook#W1sdW50aXRsZWQ%3D?line=8) hist = msft.history(period="1mo")

File [c:\Users\Nino\anaconda3\lib\site-packages\yfinance\ticker.py:138](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/ticker.py:138), in Ticker.info(self)
    [136](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/ticker.py:136) @property
    [137](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/ticker.py:137) def info(self) -> dict:
--> [138](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/ticker.py:138)     return self.get_info()

File [c:\Users\Nino\anaconda3\lib\site-packages\yfinance\base.py:1501](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/base.py:1501), in TickerBase.get_info(self, proxy)
   [1499](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/base.py:1499) def get_info(self, proxy=None) -> dict:
   [1500](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/base.py:1500)     self._quote.proxy = proxy
-> [1501](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/base.py:1501)     data = self._quote.info
   [1502](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/base.py:1502)     return data

File [c:\Users\Nino\anaconda3\lib\site-packages\yfinance\scrapers\quote.py:562](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/scrapers/quote.py:562), in Quote.info(self)
    [559](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/scrapers/quote.py:559) @property
    [560](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/scrapers/quote.py:560) def info(self) -> dict:
    [561](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/scrapers/quote.py:561)     if self._info is None:
--> [562](file:///C:/Users/Nino/anaconda3/lib/site-packages/yfinance/scrapers/quote.py:562)         self._fetch(self.proxy)
...
   [1018](file:///C:/Users/Nino/anaconda3/lib/site-packages/requests/models.py:1018)     )
   [1020](file:///C:/Users/Nino/anaconda3/lib/site-packages/requests/models.py:1020) if http_error_msg:
-> [1021](file:///C:/Users/Nino/anaconda3/lib/site-packages/requests/models.py:1021)     raise HTTPError(http_error_msg, response=self)

HTTPError: 404 Client Error: Not Found for url: https://query2.finance.yahoo.com/v6/finance/quoteSummary/MSFT?modules=financialData&modules=quoteType&modules=defaultKeyStatistics&modules=assetProfile&modules=summaryDetail&ssl=true
Output is truncated. View as a [scrollable element](command:cellOutput.enableScrolling?63b15f4e-4d30-460c-99b0-76e1dc7db8b2) or open in a [text editor](command:workbench.action.openLargeOutput?63b15f4e-4d30-460c-99b0-76e1dc7db8b2). Adjust cell output [settings](command:workbench.action.openSettings?%5B%22%40tag%3AnotebookOutputLayout%22%5D)...

[bot-unit]

@NinoNinov it's error from old code. Try latest version

[NinoNinov]

@NinoNinov it's error from old code. Try latest version

I tried to updated to last version several time but still the same issue, as you can see from my screenshot made several minutes ago.
https://i.ibb.co/F4sgLj2/yfinance.jpg

[bot-unit]

@NinoNinov
The latest version is 0.2.33, but you have installed 0.2.24

[NinoNinov]

@bot-unit many thanks for support! Now it is working, the issie was that I tried to update with comand:
pip install yfinance which was working in the past but is not working now. Instead that used:
pip install yfinance --upgrade --no-cache-dir amd now works.
@dmoklaf try to fix issue with second command

[dmoklaf]

@NinoNinov I followed your reinstall procedure with the specific flags including --no-cache-dir and the bug is still there. I may have time in the next two weeks to dig into these typing issues. The fix seems simple (may be a one liner), what worries me is the other parts of the library that I really don't use and don't know, including the cache whose existence is new to me. And why am I the only one to see this.

[bot-unit]

@dmoklaf the caching is needed for cookies. Since Yahoo started blocking requests without crumbs, we should obtain cookies, then crumb, and only then make requests.

[ValueRaider]

@dmoklaf Give us the cookie cache database file, I want to understand how error happened. I've updated README to explain where file is.

[dmoklaf]

Here are the cache files. Let me know if I should perform another test with clean (reset) cache files. Even if small, I had to zip them as GitHub doesn't accept .db files
Archive.zip

MacOS 14.2
Python 3.11.6
yfinance 0.2.33

[ValueRaider]

I understand the problem but no idea how it happened. 2023-11-21T11:32:20.866294 is in the database, using T to separate date from time instead of a space - this should be impossible because peewee handes everything. The T causes parse back into datetime to fail.

Branch hotfix/cookie-cache-date has a workaround, try it.

[dmoklaf]

Branch hotfix/cookie-cache-date has a workaround, try it.

It works !
Now that you have identified the culprit being the storage format in Sqlite, I can complete the missing pieces as I know this part well:
1- Sqlite has no true DATETIME storage. Even if the field type "seems" to exist, it's just for Sqlite an alias for a string storage.
2-The mapping from a Python datetime to the stored string is performed by the Python sqlite3 driver. I don't know if peewee relies on it or not but, based on the bug you elucidated, it seems it does replicate the same issue described below.
3-The sqlite3 driver offers (until Python 3.12, this will be removed in a future release) a default mapping that is the one you were expecting (with a space between the date and the time).
4-But I had in my dependencies tree a third-party library which enforces a strict ISO8601 mapping to make sure all stored dates can be parsed following the ISO norm in its own Sqlite database. The ISO norm uses a T between the date and the time

Note: the Python documentation is confusing because it states that its default mapping is ISO-compliant. But this is wrong. Using a space is not ISO compliant and is a tolerance stemming from RFC 3339, not supported by all tools. Strict ISO forbids the space, and requires a T.

The future for Python may favor strict ISO as the documentation announces default mappings will be removed, and offers as a compensation mapping examples strictly based on ISO (and not based on the RFC 3339 tolerance):
https://docs.python.org/3/library/sqlite3.html#default-adapters-and-converters-deprecated
https://docs.python.org/3/library/sqlite3.html#sqlite3-adapter-converter-recipes

So your workaround may be going in the right direction.

[ValueRaider]

Given this is an edge case, I have lowered priority for merge into dev branch.

[NinoNinov]

Hello @dmoklaf for the code below I receive again issue "404 Client Error: Not Found for url:"
I use the same code with S&P 500 Data and everithing works fine, if I change nasdaq100[i] with nasdaq100[1], 2, 3 code is working. Do you have idea from where is comong that issue, I guess something with the list is not ok.

stock_data = PyTickerSymbols()
nasdaq100 = stock_data.get_stocks_by_index('NASDAQ 100')
nasdaq100 = pd.DataFrame(nasdaq100)
nasdaq100=nasdaq100['symbol'].tolist()
nasdaq100_len=len(nasdaq100)

list_stocks=[]
for i in range(0,nasdaq100_len):
    stock = yf.Ticker(nasdaq100[i])
    stock_i=stock.info
    stock_i=pd.DataFrame.from_dict(stock_i.items())
    stock_i.columns =['Name', 'Value'] 
    stock_i.rename(columns = {'Value':nasdaq100[i]}, inplace = True)
    list_stocks.append(stock_i)

S&P Code which is working

#Extracting actual companies in S&P 500 Index + calculating lenght of companies in the index
table=pd.read_html('https://en.wikipedia.org/wiki/List_of_S%26P_500_companies')
sp500 = table[0]
sp500 = sp500["Symbol"].tolist()
sp500_len = len(sp500)

#Table from which will merge coulumns into main table - adding more info about S&P 500
aditional_info_sp500=table[0]
aditional_info_sp500=aditional_info_sp500[["Symbol","Founded","GICS Sector","GICS Sub-Industry","Date added"]]

#For loop whcih to store data for S&P 500 companies from yfinance to DataFrame in Pandas 
#IT IS LOADING APPROXIMATELY 5 MINUTES
list_stocks=[]
for i in range(0,sp500_len):
    stock = yf.Ticker(sp500[i])
    stock_i=stock.info
    stock_i=pd.DataFrame.from_dict(stock_i.items())
    stock_i.columns =['Name', 'Value'] 
    stock_i.rename(columns = {'Value':sp500[i]}, inplace = True)
    list_stocks.append(stock_i)

[dmoklaf]

@NinoNinov I could reproduce your error, and simplified the case to this:

import yfinance
yfinance.Ticker("ATVI").info

which raises a 404 error.

This error is coming from Yahoo and not from this library, as Yahoo declares ATVI (Activision) as a private company:
https://finance.yahoo.com/company/activision-422a?h=eyJlIjoiYWN0aXZpc2lvbi00MjJhIiwibiI6IkFjdGl2aXNpb24ifQ==&.tsrc=fin-srch

So this is an unrelated error that is not in the scope of this project.

[NinoNinov]

Many thanks, PyTickerSymbols is not up to date, will scrap NASDAQ data from web.

[ValueRaider]

Fixed by #1796