Fix yahoo source.

This commit is contained in:
Chris Berkhout 2024-09-14 22:22:35 +02:00
parent 51e297b752
commit 59574e9156
9 changed files with 475 additions and 317 deletions

View file

@ -1,4 +1,3 @@
import csv
import dataclasses
import json
import logging
@ -71,63 +70,36 @@ class Yahoo(BaseSource):
series.base, series.quote, self, "Don't specify the quote currency."
)
quote, history = self._data(series)
data = self._data(series)
quote = data["chart"]["result"][0]["meta"]["currency"]
timestamps = data["chart"]["result"][0]["timestamp"]
adjclose_data = data["chart"]["result"][0]["indicators"]["adjclose"][0]
rest_data = data["chart"]["result"][0]["indicators"]["quote"][0]
amounts = {**adjclose_data, **rest_data}
prices = [
Price(row["date"], amount)
for row in history
if (amount := self._amount(row, series.type))
Price(ts, amount)
for i in range(len(timestamps))
if (ts := datetime.fromtimestamp(timestamps[i]).strftime("%Y-%m-%d"))
<= series.end
if (amount := self._amount(amounts, series.type, i)) is not None
]
return dataclasses.replace(series, quote=quote, prices=prices)
def _amount(self, row, type):
if type == "mid" and row["high"] != "null" and row["low"] != "null":
return sum([Decimal(row["high"]), Decimal(row["low"])]) / 2
elif row[type] != "null":
return Decimal(row[type])
def _amount(self, amounts, type, i):
if type == "mid" and amounts["high"] != "null" and amounts["low"] != "null":
return sum([Decimal(amounts["high"][i]), Decimal(amounts["low"][i])]) / 2
elif amounts[type] != "null":
return Decimal(amounts[type][i])
else:
return None
def _data(self, series) -> (dict, csv.DictReader):
base_url = "https://query1.finance.yahoo.com/v7/finance"
def _data(self, series) -> dict:
base_url = "https://query1.finance.yahoo.com/v8/finance/chart"
headers = {"User-Agent": f"pricehist/{__version__}"}
spark_url = f"{base_url}/spark"
spark_params = {
"symbols": series.base,
"range": "1d",
"interval": "1d",
"indicators": "close",
"includeTimestamps": "false",
"includePrePost": "false",
}
try:
spark_response = self.log_curl(
requests.get(spark_url, params=spark_params, headers=headers)
)
except Exception as e:
raise exceptions.RequestError(str(e)) from e
code = spark_response.status_code
text = spark_response.text
if code == 404 and "No data found for spark symbols" in text:
raise exceptions.InvalidPair(
series.base, series.quote, self, "Symbol not found."
)
try:
spark_response.raise_for_status()
except Exception as e:
raise exceptions.BadResponse(str(e)) from e
try:
spark = json.loads(spark_response.content)
quote = spark["spark"]["result"][0]["response"][0]["meta"]["currency"]
except Exception as e:
raise exceptions.ResponseParsingError(
"The spark data couldn't be parsed. "
) from e
url = f"{base_url}/{series.base}"
start_ts = int(
datetime.strptime(series.start, "%Y-%m-%d")
@ -142,24 +114,26 @@ class Yahoo(BaseSource):
24 * 60 * 60
) # some symbols require padding on the end timestamp
history_url = f"{base_url}/download/{series.base}"
history_params = {
params = {
"symbol": series.base,
"period1": start_ts,
"period2": end_ts,
"interval": "1d",
"events": "history",
"events": "capitalGain%7Cdiv%7Csplit",
"includeAdjustedClose": "true",
"formatted": "true",
"userYfid": "true",
"lang": "en-US",
"region": "US",
}
try:
history_response = self.log_curl(
requests.get(history_url, params=history_params, headers=headers)
)
response = self.log_curl(requests.get(url, params=params, headers=headers))
except Exception as e:
raise exceptions.RequestError(str(e)) from e
code = history_response.status_code
text = history_response.text
code = response.status_code
text = response.text
if code == 404 and "No data found, symbol may be delisted" in text:
raise exceptions.InvalidPair(
@ -177,20 +151,15 @@ class Yahoo(BaseSource):
)
try:
history_response.raise_for_status()
response.raise_for_status()
except Exception as e:
raise exceptions.BadResponse(str(e)) from e
try:
history_lines = history_response.content.decode("utf-8").splitlines()
history_lines[0] = history_lines[0].lower().replace(" ", "")
history = csv.DictReader(history_lines, delimiter=",")
data = json.loads(response.content)
except Exception as e:
raise exceptions.ResponseParsingError(str(e)) from e
raise exceptions.ResponseParsingError(
"The data couldn't be parsed. "
) from e
if history_lines[0] != "date,open,high,low,close,adjclose,volume":
raise exceptions.ResponseParsingError("Unexpected CSV format")
requested_history = [row for row in history if row["date"] <= series.end]
return (quote, requested_history)
return data

View file

@ -116,21 +116,20 @@ date,base,quote,amount,source,type
2021-01-07,BTC,EUR,31208.49,coinbasepro,mid
2021-01-08,BTC,EUR,32019,coinbasepro,mid
END
run_test "$name" "$cmd" "$expected"
name="CoinDesk Bitcoin Price Index"
cmd="pricehist fetch coindesk BTC/EUR -s 2021-01-04 -e 2021-01-08"
read -r -d '' expected <<END
WARNING This source is deprecated. Data stops at 2022-07-10.
date,base,quote,amount,source,type
2021-01-04,BTC,EUR,26135.4901,coindesk,close
2021-01-05,BTC,EUR,27677.9141,coindesk,close
2021-01-06,BTC,EUR,29871.4301,coindesk,close
2021-01-07,BTC,EUR,32183.1594,coindesk,close
2021-01-08,BTC,EUR,33238.5724,coindesk,close
END
skip_test "$name" "$cmd" "$expected"
name="CoinDesk Bitcoin Price Index v1"
cmd="pricehist fetch coindeskbpi BTC/USD -s 2021-01-04 -e 2021-01-08"
read -r -d '' expected <<END
date,base,quote,amount,source,type
2021-01-04,BTC,USD,31431.6123,coindeskbpi,close
2021-01-05,BTC,USD,34433.6065,coindeskbpi,close
2021-01-06,BTC,USD,36275.7563,coindeskbpi,close
2021-01-07,BTC,USD,39713.5079,coindeskbpi,close
2021-01-08,BTC,USD,40519.4486,coindeskbpi,close
END
run_test "$name" "$cmd" "$expected"
name="CoinMarketCap"
cmd="pricehist fetch coinmarketcap BTC/EUR -s 2021-01-04 -e 2021-01-08"
read -r -d '' expected <<END
@ -159,11 +158,11 @@ name="Yahoo! Finance"
cmd="pricehist fetch yahoo TSLA -s 2021-01-04 -e 2021-01-08"
read -r -d '' expected <<END
date,base,quote,amount,source,type
2021-01-04,TSLA,USD,243.256668,yahoo,adjclose
2021-01-05,TSLA,USD,245.036667,yahoo,adjclose
2021-01-06,TSLA,USD,251.993332,yahoo,adjclose
2021-01-07,TSLA,USD,272.013336,yahoo,adjclose
2021-01-08,TSLA,USD,293.339996,yahoo,adjclose
2021-01-04,TSLA,USD,243.2566680908203125,yahoo,adjclose
2021-01-05,TSLA,USD,245.0366668701171875,yahoo,adjclose
2021-01-06,TSLA,USD,251.9933319091796875,yahoo,adjclose
2021-01-07,TSLA,USD,272.013336181640625,yahoo,adjclose
2021-01-08,TSLA,USD,293.339996337890625,yahoo,adjclose
END
run_test "$name" "$cmd" "$expected"

View file

@ -36,38 +36,21 @@ def requests_mock():
yield mock
spark_url = "https://query1.finance.yahoo.com/v7/finance/spark"
def history_url(base):
return f"https://query1.finance.yahoo.com/v7/finance/download/{base}"
@pytest.fixture
def spark_ok(requests_mock):
json = (Path(os.path.splitext(__file__)[0]) / "tsla-spark.json").read_text()
requests_mock.add(responses.GET, spark_url, body=json, status=200)
yield requests_mock
def url(base):
return f"https://query1.finance.yahoo.com/v8/finance/chart/{base}"
@pytest.fixture
def recent_ok(requests_mock):
json = (Path(os.path.splitext(__file__)[0]) / "tsla-recent.csv").read_text()
requests_mock.add(responses.GET, history_url("TSLA"), body=json, status=200)
json = (Path(os.path.splitext(__file__)[0]) / "tsla-recent.json").read_text()
requests_mock.add(responses.GET, url("TSLA"), body=json, status=200)
yield requests_mock
@pytest.fixture
def long_ok(requests_mock):
json = (Path(os.path.splitext(__file__)[0]) / "ibm-long-partial.csv").read_text()
requests_mock.add(responses.GET, history_url("IBM"), body=json, status=200)
yield requests_mock
@pytest.fixture
def date_with_nulls_ok(requests_mock):
json = (Path(os.path.splitext(__file__)[0]) / "ibm-date-with-nulls.csv").read_text()
requests_mock.add(responses.GET, history_url("IBM"), body=json, status=200)
json = (Path(os.path.splitext(__file__)[0]) / "ibm-long-partial.json").read_text()
requests_mock.add(responses.GET, url("IBM"), body=json, status=200)
yield requests_mock
@ -105,59 +88,57 @@ def test_symbols(src, caplog):
assert any(["Find the symbol of interest on" in r.message for r in caplog.records])
def test_fetch_known(src, type, spark_ok, recent_ok):
def test_fetch_known(src, type, recent_ok):
series = src.fetch(Series("TSLA", "", type, "2021-01-04", "2021-01-08"))
spark_req = recent_ok.calls[0].request
hist_req = recent_ok.calls[1].request
assert spark_req.params["symbols"] == "TSLA"
assert hist_req.params["events"] == "history"
assert hist_req.params["includeAdjustedClose"] == "true"
req = recent_ok.calls[0].request
assert req.params["events"] == "capitalGain%7Cdiv%7Csplit"
assert req.params["includeAdjustedClose"] == "true"
assert (series.base, series.quote) == ("TSLA", "USD")
assert len(series.prices) == 5
def test_fetch_requests_and_receives_correct_times(src, type, spark_ok, recent_ok):
def test_fetch_requests_and_receives_correct_times(src, type, recent_ok):
series = src.fetch(Series("TSLA", "", type, "2021-01-04", "2021-01-08"))
hist_req = recent_ok.calls[1].request
assert hist_req.params["period1"] == str(timestamp("2021-01-04"))
assert hist_req.params["period2"] == str(timestamp("2021-01-09")) # rounded up one
assert hist_req.params["interval"] == "1d"
assert series.prices[0] == Price("2021-01-04", Decimal("729.770020"))
assert series.prices[-1] == Price("2021-01-08", Decimal("880.020020"))
req = recent_ok.calls[0].request
assert req.params["period1"] == str(timestamp("2021-01-04"))
assert req.params["period2"] == str(timestamp("2021-01-09")) # rounded up one
assert req.params["interval"] == "1d"
assert series.prices[0] == Price("2021-01-04", Decimal("243.2566680908203125"))
assert series.prices[-1] == Price("2021-01-08", Decimal("293.339996337890625"))
def test_fetch_ignores_any_extra_row(src, type, spark_ok, recent_ok):
def test_fetch_ignores_any_extra_row(src, type, recent_ok):
series = src.fetch(Series("TSLA", "", type, "2021-01-04", "2021-01-07"))
assert series.prices[0] == Price("2021-01-04", Decimal("729.770020"))
assert series.prices[-1] == Price("2021-01-07", Decimal("816.039978"))
assert series.prices[0] == Price("2021-01-04", Decimal("243.2566680908203125"))
assert series.prices[-1] == Price("2021-01-07", Decimal("272.013336181640625"))
def test_fetch_requests_logged(src, type, spark_ok, recent_ok, caplog):
def test_fetch_requests_logged(src, type, recent_ok, caplog):
with caplog.at_level(logging.DEBUG):
src.fetch(Series("TSLA", "", type, "2021-01-04", "2021-01-08"))
logged_requests = 0
for r in caplog.records:
if r.levelname == "DEBUG" and "curl " in r.message:
logged_requests += 1
assert logged_requests == 2
assert logged_requests == 1
def test_fetch_types_all_available(src, spark_ok, recent_ok):
def test_fetch_types_all_available(src, recent_ok):
adj = src.fetch(Series("TSLA", "", "adjclose", "2021-01-04", "2021-01-08"))
opn = src.fetch(Series("TSLA", "", "open", "2021-01-04", "2021-01-08"))
hgh = src.fetch(Series("TSLA", "", "high", "2021-01-04", "2021-01-08"))
low = src.fetch(Series("TSLA", "", "low", "2021-01-04", "2021-01-08"))
cls = src.fetch(Series("TSLA", "", "close", "2021-01-04", "2021-01-08"))
mid = src.fetch(Series("TSLA", "", "mid", "2021-01-04", "2021-01-08"))
assert adj.prices[0].amount == Decimal("729.770020")
assert opn.prices[0].amount == Decimal("719.460022")
assert hgh.prices[0].amount == Decimal("744.489990")
assert low.prices[0].amount == Decimal("717.190002")
assert cls.prices[0].amount == Decimal("729.770020")
assert mid.prices[0].amount == Decimal("730.839996")
assert adj.prices[0].amount == Decimal("243.2566680908203125")
assert opn.prices[0].amount == Decimal("239.82000732421875")
assert hgh.prices[0].amount == Decimal("248.163330078125")
assert low.prices[0].amount == Decimal("239.0633392333984375")
assert cls.prices[0].amount == Decimal("243.2566680908203125")
assert mid.prices[0].amount == Decimal("243.61333465576171875")
def test_fetch_type_mid_is_mean_of_low_and_high(src, spark_ok, recent_ok):
def test_fetch_type_mid_is_mean_of_low_and_high(src, recent_ok):
mid = src.fetch(Series("TSLA", "", "mid", "2021-01-04", "2021-01-08")).prices
hgh = src.fetch(Series("TSLA", "", "high", "2021-01-04", "2021-01-08")).prices
low = src.fetch(Series("TSLA", "", "low", "2021-01-04", "2021-01-08")).prices
@ -169,29 +150,22 @@ def test_fetch_type_mid_is_mean_of_low_and_high(src, spark_ok, recent_ok):
)
def test_fetch_from_before_start(src, type, spark_ok, long_ok):
def test_fetch_from_before_start(src, type, long_ok):
series = src.fetch(Series("IBM", "", type, "1900-01-01", "2021-01-08"))
assert series.prices[0] == Price("1962-01-02", Decimal("1.837710"))
assert series.prices[-1] == Price("2021-01-08", Decimal("125.433624"))
assert series.prices[0] == Price("1962-01-02", Decimal("1.5133211612701416015625"))
assert series.prices[-1] == Price("2021-01-08", Decimal("103.2923736572265625"))
assert len(series.prices) > 9
def test_fetch_skips_dates_with_nulls(src, type, spark_ok, date_with_nulls_ok):
series = src.fetch(Series("IBM", "", type, "2021-01-05", "2021-01-07"))
assert series.prices[0] == Price("2021-01-05", Decimal("123.101204"))
assert series.prices[1] == Price("2021-01-07", Decimal("125.882545"))
assert len(series.prices) == 2
def test_fetch_to_future(src, type, spark_ok, recent_ok):
def test_fetch_to_future(src, type, recent_ok):
series = src.fetch(Series("TSLA", "", type, "2021-01-04", "2100-01-08"))
assert len(series.prices) > 0
def test_fetch_no_data_in_past(src, type, spark_ok, requests_mock):
def test_fetch_no_data_in_past(src, type, requests_mock):
requests_mock.add(
responses.GET,
history_url("TSLA"),
url("TSLA"),
status=400,
body=(
"400 Bad Request: Data doesn't exist for "
@ -203,10 +177,10 @@ def test_fetch_no_data_in_past(src, type, spark_ok, requests_mock):
assert "No data for the given interval" in str(e.value)
def test_fetch_no_data_in_future(src, type, spark_ok, requests_mock):
def test_fetch_no_data_in_future(src, type, requests_mock):
requests_mock.add(
responses.GET,
history_url("TSLA"),
url("TSLA"),
status=400,
body=(
"400 Bad Request: Data doesn't exist for "
@ -218,10 +192,10 @@ def test_fetch_no_data_in_future(src, type, spark_ok, requests_mock):
assert "No data for the given interval" in str(e.value)
def test_fetch_no_data_on_weekend(src, type, spark_ok, requests_mock):
def test_fetch_no_data_on_weekend(src, type, requests_mock):
requests_mock.add(
responses.GET,
history_url("TSLA"),
url("TSLA"),
status=404,
body="404 Not Found: Timestamp data missing.",
)
@ -233,30 +207,7 @@ def test_fetch_no_data_on_weekend(src, type, spark_ok, requests_mock):
def test_fetch_bad_sym(src, type, requests_mock):
requests_mock.add(
responses.GET,
spark_url,
status=404,
body="""{
"spark": {
"result": null,
"error": {
"code": "Not Found",
"description": "No data found for spark symbols"
}
}
}""",
)
with pytest.raises(exceptions.InvalidPair) as e:
src.fetch(Series("NOTABASE", "", type, "2021-01-04", "2021-01-08"))
assert "Symbol not found" in str(e.value)
def test_fetch_bad_sym_history(src, type, spark_ok, requests_mock):
# In practice the spark history requests should succeed or fail together.
# This extra test ensures that a failure of the the history part is handled
# correctly even if the spark part succeeds.
requests_mock.add(
responses.GET,
history_url("NOTABASE"),
url("NOTABASE"),
status=404,
body="404 Not Found: No data found, symbol may be delisted",
)
@ -271,61 +222,23 @@ def test_fetch_giving_quote(src, type):
assert "quote currency" in str(e.value)
def test_fetch_spark_network_issue(src, type, requests_mock):
def test_fetch_network_issue(src, type, requests_mock):
body = requests.exceptions.ConnectionError("Network issue")
requests_mock.add(responses.GET, spark_url, body=body)
requests_mock.add(responses.GET, url("TSLA"), body=body)
with pytest.raises(exceptions.RequestError) as e:
src.fetch(Series("TSLA", "", type, "2021-01-04", "2021-01-08"))
assert "Network issue" in str(e.value)
def test_fetch_spark_bad_status(src, type, requests_mock):
requests_mock.add(responses.GET, spark_url, status=500, body="Some other reason")
def test_fetch_bad_status(src, type, requests_mock):
requests_mock.add(responses.GET, url("TSLA"), status=500, body="Some other reason")
with pytest.raises(exceptions.BadResponse) as e:
src.fetch(Series("TSLA", "", type, "2021-01-04", "2021-01-08"))
assert "Internal Server Error" in str(e.value)
def test_fetch_spark_parsing_error(src, type, requests_mock):
requests_mock.add(responses.GET, spark_url, body="NOT JSON")
with pytest.raises(exceptions.ResponseParsingError) as e:
src.fetch(Series("TSLA", "", type, "2021-01-04", "2021-01-08"))
assert "spark data couldn't be parsed" in str(e.value)
def test_fetch_spark_unexpected_json(src, type, requests_mock):
requests_mock.add(responses.GET, spark_url, body='{"notdata": []}')
with pytest.raises(exceptions.ResponseParsingError) as e:
src.fetch(Series("TSLA", "", type, "2021-01-04", "2021-01-08"))
assert "spark data couldn't be parsed" in str(e.value)
def test_fetch_history_network_issue(src, type, spark_ok, requests_mock):
body = requests.exceptions.ConnectionError("Network issue")
requests_mock.add(responses.GET, history_url("TSLA"), body=body)
with pytest.raises(exceptions.RequestError) as e:
src.fetch(Series("TSLA", "", type, "2021-01-04", "2021-01-08"))
assert "Network issue" in str(e.value)
def test_fetch_history_bad_status(src, type, spark_ok, requests_mock):
requests_mock.add(
responses.GET, history_url("TSLA"), status=500, body="Some other reason"
)
with pytest.raises(exceptions.BadResponse) as e:
src.fetch(Series("TSLA", "", type, "2021-01-04", "2021-01-08"))
assert "Internal Server Error" in str(e.value)
def test_fetch_history_parsing_error(src, type, spark_ok, requests_mock):
requests_mock.add(responses.GET, history_url("TSLA"), body="")
def test_fetch_parsing_error(src, type, requests_mock):
requests_mock.add(responses.GET, url("TSLA"), body="")
with pytest.raises(exceptions.ResponseParsingError) as e:
src.fetch(Series("TSLA", "", type, "2021-01-04", "2021-01-08"))
assert "error occurred while parsing data from the source" in str(e.value)
def test_fetch_history_unexpected_csv_format(src, type, spark_ok, requests_mock):
requests_mock.add(responses.GET, history_url("TSLA"), body="BAD HEADER\nBAD DATA")
with pytest.raises(exceptions.ResponseParsingError) as e:
src.fetch(Series("TSLA", "", type, "2021-01-04", "2021-01-08"))
assert "Unexpected CSV format" in str(e.value)

View file

@ -1,4 +0,0 @@
Date,Open,High,Low,Close,Adj Close,Volume
2021-01-05,125.010002,126.680000,124.610001,126.139999,123.101204,6114600
2021-01-06,null,null,null,null,null,null
2021-01-07,130.039993,130.460007,128.259995,128.990005,125.882545,4507400
1 Date Open High Low Close Adj Close Volume
2 2021-01-05 125.010002 126.680000 124.610001 126.139999 123.101204 6114600
3 2021-01-06 null null null null null null
4 2021-01-07 130.039993 130.460007 128.259995 128.990005 125.882545 4507400

View file

@ -1,11 +0,0 @@
Date,Open,High,Low,Close,Adj Close,Volume
1962-01-02,7.713333,7.713333,7.626667,7.626667,1.837710,390000
1962-01-03,7.626667,7.693333,7.626667,7.693333,1.853774,292500
1962-01-04,7.693333,7.693333,7.613333,7.616667,1.835299,262500
1962-01-05,7.606667,7.606667,7.453333,7.466667,1.799155,367500
1962-01-08,7.460000,7.460000,7.266667,7.326667,1.765422,547500
2021-01-04,125.849998,125.919998,123.040001,123.940002,120.954201,5179200
2021-01-05,125.010002,126.680000,124.610001,126.139999,123.101204,6114600
2021-01-06,126.900002,131.880005,126.720001,129.289993,126.175316,7956700
2021-01-07,130.039993,130.460007,128.259995,128.990005,125.882545,4507400
2021-01-08,128.570007,129.320007,126.980003,128.529999,125.433624,4676200
1 Date Open High Low Close Adj Close Volume
2 1962-01-02 7.713333 7.713333 7.626667 7.626667 1.837710 390000
3 1962-01-03 7.626667 7.693333 7.626667 7.693333 1.853774 292500
4 1962-01-04 7.693333 7.693333 7.613333 7.616667 1.835299 262500
5 1962-01-05 7.606667 7.606667 7.453333 7.466667 1.799155 367500
6 1962-01-08 7.460000 7.460000 7.266667 7.326667 1.765422 547500
7 2021-01-04 125.849998 125.919998 123.040001 123.940002 120.954201 5179200
8 2021-01-05 125.010002 126.680000 124.610001 126.139999 123.101204 6114600
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