Adjust and fix according to feedback

README.md

@@ -268,28 +268,6 @@ details on your rights to use the actual data downloaded.
 
 ---
 
-### Running Tests
-
-Tests have been written using the built-in Python module `unittest`
-
-An example of running all tests in a file that calls `unittest.main`:
-
-```sh
-python -m unittest tests.test_prices
-```
-
-An example of running a test of a single method (applicable to a class as well):
-
-```sh
-python -m unittest tests.test_prices.TestPriceRepair.test_ticker_missing
-```
-
-To run all tests
-
-```sh
-python -m unittest discover -s tests
-```
-
 ### P.S.
 
 Please drop me an note with any feedback you have.

requirements.txt

@@ -9,5 +9,3 @@ frozendict>=2.3.4
 beautifulsoup4>=4.11.1
 html5lib>=1.1
 peewee>=3.16.2
-requests_cache>=1.0
-requests-ratelimiter>=0.3.1

yfinance/exceptions.py

@@ -22,7 +22,7 @@ class YFTickerMissingError(YFException):
     def __init__(self, ticker, rationale):
         super().__init__(f"${ticker}: possibly delisted; {rationale}")
         self.rationale = rationale
-        self.ticker = rationale
+        self.ticker = ticker
 
 
 class YFTzMissingError(YFTickerMissingError):

yfinance/scrapers/history.py

@@ -80,7 +80,7 @@ def history(self, period="1mo", interval="1d",
             # Check can get TZ. Fail => probably delisted
             tz = self.tz
             if tz is None:
-                # Every valid ticker has a timezone. A missing timezone is a problem problem
+                # Every valid ticker has a timezone. A missing timezone is a problem.
                 _exception = YFTzMissingError(self.ticker)
                 err_msg = str(_exception)
                 shared._DFS[self.ticker] = utils.empty_df()

yfinance/ticker.py

@@ -48,8 +48,8 @@ def _download_options(self, date=None):
         r = self._data.get(url=url, proxy=self.proxy).json()
         if len(r.get('optionChain', {}).get('result', [])) > 0:
             for exp in r['optionChain']['result'][0]['expirationDates']:
-                self._expirations[_datetime.datetime.fromtimestamp(exp).strftime('%Y-%m-%d')] = exp
-                assert _datetime.datetime.utcfromtimestamp(exp).strftime('%Y-%m-%d') in self._expirations
+                self._expirations[_datetime.datetime.utcfromtimestamp(
+                    exp).strftime('%Y-%m-%d')] = exp
 
             self._underlying = r['optionChain']['result'][0].get('quote', {})