Merge branch 'v0.8.1'

README.md

@@ -13,7 +13,8 @@ and load them, and extend their functionality.
 Finally, tessa makes sure to be nice to the sites being accessed and tries to **prevent
 users from being blocked by 429 rate limiting errors** by 1) caching results upon
 retrieval and 2) keeping track of request timestamps and waiting appropriate amounts of
-time if necessary.
+time if necessary. tessa also automatically waits and retries requests that fail with a
+5xx error.
 
 [→ Check out the full documentation. 📖](https://ymyke.github.io/tessa/tessa.html)
 
@@ -51,14 +52,14 @@ s3 = Symbol("bitcoin", source="coingecko")
 s3.price_graph()            # show price graph
 ```
 
-- Search for a more crypto ticker on coingecko:
+- Search for a crypto ticker on coingecko:
 
 ```python
-res = search("GAME")        # search and print search result summary
+res = search("name")        # search and print search result summary
 filtered = res.filter(source="coingecko")  # filter results
 filtered.p()                # print summary of filtered results
-filtered.buckets[0].symbols # review the best bucket in the filtered results
-s4 = filtered.buckets[0].symbols[2]   # our symbol is the 3rd in that list
+filtered.buckets[1].symbols # review the 2nd bucket in the filtered results
+s4 = filtered.buckets[1].symbols[2]   # our symbol is the 3rd in that list
 s4.price_history()          # get entire history
 ```
 
@@ -81,9 +82,9 @@ sc_new.load_yaml("my_symbols.yaml")
 - Use a different currency preference:
 
 ```python
-sc.find_one("game").price_latest()  # will return price in USD
+sc.find_one("ens").price_latest()   # will return price in USD
 Symbol.currency_preference = "CHF"
-sc.find_one("game").price_latest()  # will return price in CHF
+sc.find_one("ens").price_latest()   # will return price in CHF
 ```
 
 Note that `currency_preference` will only have an effect with sources that support it.

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "tessa"
-version = "0.8.0"
+version = "0.8.1"
 description = "Find financial assets and get their price history without worrying about different APIs or rate limiting."
 authors = ["ymyke"]
 license = "MIT"

tessa/price/yahoo.py

@@ -2,7 +2,7 @@
 
 import pandas as pd
 import yfinance as yf
-from .types import PriceHistory, SymbolNotFoundError
+from .types import PriceHistory
 
 START_FROM = "2000-01-01"
 """Adjust this date if you need to get historical data further in the past. Note that
@@ -18,11 +18,7 @@ def get_price_history(
     that ticker.
     """
     ticker = yf.Ticker(query)
-    try:
-        df = ticker.history(start=START_FROM, raise_errors=True)
-    except Exception as exc:  # pylint: disable=broad-except
-        if "No timezone found" in str(exc):
-            raise SymbolNotFoundError(source="yahoo", query=query) from exc
+    df = ticker.history(start=START_FROM, raise_errors=True)
 
     # Simplify dataframe:
     df = df.copy()

tests/price/test_price_points.py

@@ -62,7 +62,7 @@ def test_concrete_yahoo_price_point():
     res = price_point("AAPL", "2018-01-11", "yahoo")
     assert isinstance(res, PricePoint)
     assert res.when == pd.Timestamp("2018-01-11 05:00:00+0000", tz="UTC")
-    assert round(res.price) == 42
+    assert round(res.price) == 41
     assert res.currency == "USD"
 
 

tests/price/test_yahoo_api.py

@@ -4,7 +4,6 @@
 
 import pytest
 from tessa.price import yahoo
-from tessa.price.types import SymbolNotFoundError
 
 
 @pytest.mark.parametrize(
@@ -28,6 +27,5 @@ def test_api_returns_reasonable_data(query: str, expected_currency: str):
 
 @pytest.mark.net
 def test_non_existing_query_raises():
-    with pytest.raises(SymbolNotFoundError) as excinfo:
+    with pytest.raises(Exception):
         yahoo.get_price_history("thisshouldntexistreally")
-    assert "No symbol found" in str(excinfo.value)