print raising exception in process_adjusted_prices_single_instrument

[emretezel]

Hi Rob,

Working on uploading historical futures data from CSI into the system, almost there, but notice the print statement inside process_adjusted_prices_single_instrument function is failing an assertion inside pandas code

` def _ensure_type(self: T, obj) -> T:
"""Ensure that an object has same type as self.

    Used by type checkers.
    """
    assert isinstance(obj, type(self)), type(obj)
    return obj`

Anyway, if I comment out the print statement the adjusted prices are created fine. Below is the stack.

File "/Users/batman/Documents/Python Projects/pysystemtrade/sysinit/futures/adjustedprices_from_mongo_multiple_to_mongo.py", line 33, in process_adjusted_prices_single_instrument
print(adjusted_prices)
File "/Users/batman/opt/anaconda3/lib/python3.7/site-packages/pandas/core/series.py", line 1371, in repr
length=show_dimensions,
File "/Users/batman/opt/anaconda3/lib/python3.7/site-packages/pandas/core/series.py", line 1435, in to_string
max_rows=max_rows,
File "/Users/batman/opt/anaconda3/lib/python3.7/site-packages/pandas/io/formats/format.py", line 260, in init
self._chk_truncate()
File "/Users/batman/opt/anaconda3/lib/python3.7/site-packages/pandas/io/formats/format.py", line 285, in _chk_truncate
concat((series.iloc[:row_num], series.iloc[-row_num:]))
File "/Users/batman/opt/anaconda3/lib/python3.7/site-packages/pandas/core/base.py", line 93, in _ensure_type
assert isinstance(obj, type(self)), type(obj)
AssertionError: <class 'pandas.core.series.Series'>

[tgibson11]

Looks like you are using Pandas 1.1.x, which is still in development. This is (or was) a bug in Pandas. For example, see pandas-dev/pandas#32416, although I'm not 100% sure this is the same issue.

I would recommend one of the following options (in order of what I would do personally):

1. Downgrade to 0.25.2, which is working fine for me
2. Downgrade to 1.0.4, the latest released version, and be prepared for possible issues
3. Throw caution to the wind, and upgrade to some more current version of whatever you have installed now and hope the bug is fixed

[robcarver17]

Closing as can't reproduce the error with my version of pandas

[emretezel]

Thanks both, setting a brand new clean env with only pysystemtrade dependencies, python 3.8, pandas 1.0.3 problem resolved.

…

On 8 Jun 2020, at 10:27, Robert Carver ***@***.***> wrote: Closed #175 <#175>. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#175 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAEJUDNB67HBYIJD3GOHNVLRVSVHFANCNFSM4NXXD6PQ>.