commit 23e6c91758e113d3bc17fcca0fc93ab3a09bee58
Author: Dima Gerasimov <karlicoss@gmail.com>
Date:   Wed Aug 7 08:15:25 2019 +0100

    add blood provider

diff --git a/body/blood.py b/body/blood.py
new file mode 100755
index 0000000..4b51797
--- /dev/null
+++ b/body/blood.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+from datetime import datetime
+from typing import Iterable, NamedTuple, Optional
+
+import porg
+from kython import listify
+from kython.org import parse_org_date
+
+from ..paths import LOGS
+
+
+blood_log = LOGS / 'blood.org'
+
+class Entry(NamedTuple):
+    dt: datetime
+    ket: Optional[float]
+    glu: Optional[float]
+    extra: str
+
+
+def iter_data() -> Iterable[Entry]:
+    o = porg.Org.from_file(blood_log)
+    tbl = o.xpath('//table')
+    for l in tbl.lines:
+        kets = l['ket'].strip()
+        glus = l['glu'].strip()
+        extra = l['notes']
+        dt = parse_org_date(l['datetime'])
+        assert isinstance(dt, datetime)
+        ket = None if len(kets) == 0 else float(kets)
+        glu = None if len(glus) == 0 else float(glus)
+        yield Entry(
+            dt=dt,
+            ket=ket,
+            glu=glu,
+            extra=extra,
+        )
+
+def data():
+    datas = list(iter_data())
+    return list(sorted(datas, key=lambda d: d.dt))
+
+
+def dataframe():
+    import pandas as pd
+    return pd.DataFrame(map(lambda e: e._asdict(), data()))
+
+
+def main():
+    print(data())
+
+
+if __name__ == '__main__':
+    main()