FutureWarning: Conversion of the second argument of issubdtype from int to np.signedinteger is deprecated.

[kothique]

Arctic Version

arctic-1.68.0

Arctic Store

TickStore

Platform and version

Linux 4.15.0-29deepin-generic x86_64

Python 3.6.5

Description of problem and/or code sample that reproduces the issue

(second line)

(quotes_fetcher-eB5mEd6u) (default2)kothique@kothique-laptop:~/Development/__tmp/__python/quotes_fetcher$ python reproduce.py 
/home/kothique/.local/share/virtualenvs/quotes_fetcher-eB5mEd6u/lib/python3.6/site-packages/arctic/tickstore/tickstore.py:413: FutureWarning: Conversion of the second argument of issubdtype from `int` to `np.signedinteger` is deprecated. In future, it will be treated as `np.int64 == np.dtype(int).type`.
  if np.issubdtype(dtype, int):
                                     col1     col2
2018-08-27 12:55:05.950000+03:00  1.13254  1.13135

from arctic import Arctic, TICK_STORE
from datetime import datetime, timezone

conn = Arctic("localhost")
conn.initialize_library("repr_lib", lib_type=TICK_STORE)
lib = conn.get_library("repr_lib")

date = datetime.now(timezone.utc)
lib.write("sym1", [{"col1":"1.13254","col2":"1.13135","index":date}]) # <- warning is printed from here

df = lib.read("sym1")
print(df)

[bmoscon]

what version of pandas and numpy are you running? you can run pip freeze to display them

[kothique]

pandas==0.23.4
numpy==1.15.1

[fl4p-old]

Fix, may create a PR:

In Tickstore.py replace

if np.issubdtype(dtype, int):

with

if np.issubdtype(dtype, np.integer):
``