TypeError: an integer is required (got type bytes)

[cdsmumbai]

Problem Description

Please provide a minimal, self-contained, and reproducible example:

[Paste code here]

import pyfolio as pf
Please provide the full traceback:

[Paste traceback here]
```---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-11-1977abd82007> in <module>
----> 1 import pyfolio as pf

~\anaconda3\lib\site-packages\pyfolio\__init__.py in <module>
----> 1 from . import utils
      2 from . import timeseries
      3 from . import pos
      4 from . import txn
      5 from . import interesting_periods

~\anaconda3\lib\site-packages\pyfolio\utils.py in <module>
     26 import empyrical.utils
     27 
---> 28 from . import pos
     29 from . import txn
     30 

~\anaconda3\lib\site-packages\pyfolio\pos.py in <module>
     20 
     21 try:
---> 22     from zipline.assets import Equity, Future
     23     ZIPLINE = True
     24 except ImportError:

c:\users\home\src\zipline-trader\zipline\__init__.py in <module>
     27 from .utils.numpy_utils import numpy_version
     28 from .utils.pandas_utils import new_pandas
---> 29 from .utils.run_algo import run_algorithm
     30 from ._version import get_versions
     31 

c:\users\home\src\zipline-trader\zipline\utils\run_algo.py in <module>
     22 from trading_calendars import get_calendar
     23 
---> 24 from zipline.data import bundles
     25 from zipline.data.benchmarks import get_benchmark_returns_from_file
     26 from zipline.data.data_portal import DataPortal

c:\users\home\src\zipline-trader\zipline\data\bundles\__init__.py in <module>
      1 # These imports are necessary to force module-scope register calls to happen.
----> 2 from . import quandl  # noqa
      3 from . import csvdir  # noqa
      4 from . import alpaca_api
      5 from . import alpha_vantage_api

c:\users\home\src\zipline-trader\zipline\data\bundles\quandl.py in <module>
     14 from trading_calendars import register_calendar_alias
     15 
---> 16 from . import core as bundles
     17 import numpy as np
     18 

c:\users\home\src\zipline-trader\zipline\data\bundles\core.py in <module>
     11 from toolz import curry, complement, take
     12 
---> 13 from ..adjustments import SQLiteAdjustmentReader, SQLiteAdjustmentWriter
     14 from ..bcolz_daily_bars import BcolzDailyBarReader, BcolzDailyBarWriter
     15 from ..minute_bars import (

c:\users\home\src\zipline-trader\zipline\data\adjustments.py in <module>
     27 from zipline.utils.pandas_utils import empty_dataframe
     28 from zipline.utils.db_utils import group_into_chunks, coerce_string_to_conn
---> 29 from ._adjustments import load_adjustments_from_sqlite
     30 
     31 log = Logger(__name__)

c:\users\home\src\zipline-trader\zipline\data\_adjustments.pyx in init zipline.data._adjustments()

c:\users\home\src\zipline-trader\zipline\assets\__init__.py in <module>
     20     make_asset_array,
     21 )
---> 22 from .assets import (
     23     AssetFinder,
     24     AssetConvertible,

c:\users\home\src\zipline-trader\zipline\assets\assets.py in <module>
     65     OrderedContracts,
     66 )
---> 67 from .asset_writer import (
     68     check_version_info,
     69     split_delimited_symbol,

c:\users\home\src\zipline-trader\zipline\assets\asset_writer.py in <module>
    451 
    452 
--> 453 class AssetDBWriter(object):
    454     """Class used to write data to an assets db.
    455 

c:\users\home\src\zipline-trader\zipline\assets\asset_writer.py in AssetDBWriter()
    462 
    463     @preprocess(engine=coerce_string_to_eng(require_exists=False))
--> 464     def __init__(self, engine, asset_finder=None):
    465         self.asset_finder = asset_finder
    466         self.engine = engine

c:\users\home\src\zipline-trader\zipline\utils\preprocess.py in _decorator(f)
    107             )
    108 
--> 109         return _build_preprocessed_function(
    110             f, processors, args_defaults, varargs, varkw,
    111         )

c:\users\home\src\zipline-trader\zipline\utils\preprocess.py in _build_preprocessed_function(func, processors, args_defaults, varargs, varkw)
    244 
    245     args['co_firstlineno'] = original_code.co_firstlineno
--> 246     new_func.__code__ = CodeType(*map(getitem(args), _code_argorder))
    247     return new_func

TypeError: an integer is required (got type bytes)






**Please provide any additional information below:**


## Versions

* Pyfolio version:      3
* Python version:      3.8.5
* Pandas version:      1.1.3
* Matplotlib version:  3.32

[maj-dias]

I think I'm having a similar problem.

`---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
Cell In[5], line 4
2 import pandas as pd
3 import pyodbc
----> 4 import pyfolio as pf
5 import yfinance as yf

File ~\AppData\Local\anaconda3\lib\site-packages\pyfolio_init_.py:3
1 import warnings
----> 3 from . import utils
4 from . import timeseries
5 from . import pos

File ~\AppData\Local\anaconda3\lib\site-packages\pyfolio\utils.py:28
24 from IPython.display import display, HTML
26 import empyrical.utils
---> 28 from . import pos
29 from . import txn
31 APPROX_BDAYS_PER_MONTH = 21

File ~\AppData\Local\anaconda3\lib\site-packages\pyfolio\pos.py:22
19 import warnings
21 try:
---> 22 from zipline.assets import Equity, Future
23 ZIPLINE = True
24 except ImportError:

File ~\AppData\Local\anaconda3\lib\site-packages\zipline_init_.py:21
17 import numpy as np
19 # This is not a place to dump arbitrary classes/modules for convenience,
20 # it is a place to expose the public interfaces.
---> 21 from trading_calendars import get_calendar
23 from . import data
24 from . import finance

File ~\AppData\Local\anaconda3\lib\site-packages\trading_calendars_init_.py:16
1 #
2 # Copyright 2018 Quantopian, Inc.
3 #
(...)
13 # See the License for the specific language governing permissions and
14 # limitations under the License.
---> 16 from .trading_calendar import TradingCalendar
17 from .calendar_utils import (
18 clear_calendars,
19 deregister_calendar,
(...)
25 resolve_alias,
26 )
28 all = [
29 'clear_calendars',
30 'deregister_calendar',
(...)
37 'TradingCalendar',
38 ]

File ~\AppData\Local\anaconda3\lib\site-packages\trading_calendars\trading_calendar.py:33
30 from pandas.tseries.offsets import CustomBusinessDay
31 import toolz
---> 33 from .calendar_helpers import (
34 NP_NAT,
35 compute_all_minutes,
36 next_divider_idx,
37 previous_divider_idx,
38 )
39 from .utils.memoize import lazyval
40 from .utils.pandas_utils import days_at_time

File ~\AppData\Local\anaconda3\lib\site-packages\trading_calendars\calendar_helpers.py:6
2 import pandas as pd
4 NANOSECONDS_PER_MINUTE = int(6e10)
----> 6 NP_NAT = np.array([pd.NaT], dtype=np.int64)[0]
9 def next_divider_idx(dividers, minute_val):
11 divider_idx = np.searchsorted(dividers, minute_val, side="right")

TypeError: int() argument must be a string, a bytes-like object or a real number, not 'NaTType'`

when importing pyfolio with the most updated version.