Tag Archives: Error reporting and exception resolution

import statsmodels.api as sm Error: ImportError: DLL load failed while importing _arpack: The specified program could not be found.

 

import statsmodels. API as SM reports the following errors:

The solution process is tortuous. Roughly, the SciPy version is incompatible with some methods of statsmodels. After scipy==1.6.0, the problem is solved:


(base) C:\Users\Administrator>pip uninstall statsmodels
Found existing installation: statsmodels 0.11.1
Uninstalling statsmodels-0.11.1:
  Would remove:
    d:\python\anaconda3\lib\site-packages\statsmodels-0.11.1.dist-info\*
    d:\python\anaconda3\lib\site-packages\statsmodels\*
Proceed (y/n)?y
  Successfully uninstalled statsmodels-0.11.1

(base) C:\Users\Administrator>pip install statsmodels==0.12.0 -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
Looking in indexes: http://pypi.douban.com/simple
Collecting statsmodels==0.12.0
  Downloading http://pypi.doubanio.com/packages/37/22/959fdc710b6b384ad21a876130000557163978880dc50e16ba5d4ce35c18/statsmodels-0.12.0-cp38-none-win_amd64.whl (9.2 MB)
     |████████████████████████████████| 9.2 MB 6.4 MB/s
Requirement already satisfied: scipy>=1.1 in d:\python\anaconda3\lib\site-packages (from statsmodels==0.12.0) (1.5.0)
Requirement already satisfied: numpy>=1.15 in d:\python\anaconda3\lib\site-packages (from statsmodels==0.12.0) (1.20.3)
Requirement already satisfied: pandas>=0.21 in d:\python\anaconda3\lib\site-packages (from statsmodels==0.12.0) (1.3.4)
Requirement already satisfied: patsy>=0.5 in d:\python\anaconda3\lib\site-packages (from statsmodels==0.12.0) (0.5.1)
Requirement already satisfied: python-dateutil>=2.7.3 in d:\python\anaconda3\lib\site-packages (from pandas>=0.21->statsmodels==0.12.0) (2.8.1)
Requirement already satisfied: pytz>=2017.3 in d:\python\anaconda3\lib\site-packages (from pandas>=0.21->statsmodels==0.12.0) (2020.1)
Requirement already satisfied: six in d:\python\anaconda3\lib\site-packages (from patsy>=0.5->statsmodels==0.12.0) (1.15.0)
Installing collected packages: statsmodels
Successfully installed statsmodels-0.12.0

(base) C:\Users\Administrator>pip show scipy
Name: scipy
Version: 1.5.0
Summary: SciPy: Scientific Library for Python
Home-page: https://www.scipy.org
Author: None
Author-email: None
License: BSD
Location: d:\python\anaconda3\lib\site-packages
Requires: numpy
Required-by: -tatsmodels, xgboost, wxgl, sweetviz, stldecompose, statsmodels, sesd, seaborn, scikit-learn, scikit-image, resampy, pyod, mplsoccer, missingno, lightgbm, librosa, imgaug, imbalanced-learn, gensim, filterpy, factor-analyzer, combo, category-encoders, catboost, bayesian-optimization, albumentations

(base) C:\Users\Administrator>pip uninstall scipy
Found existing installation: scipy 1.5.0
Uninstalling scipy-1.5.0:
  Would remove:
    d:\python\anaconda3\lib\site-packages\scipy-1.5.0.dist-info\*
    d:\python\anaconda3\lib\site-packages\scipy\*
Proceed (y/n)?y
  Successfully uninstalled scipy-1.5.0
ERROR: Exception:
Traceback (most recent call last):
  File "D:\python\Anaconda3\lib\site-packages\pip\_internal\cli\base_command.py", line 188, in _main
    status = self.run(options, args)
  File "D:\python\Anaconda3\lib\site-packages\pip\_internal\commands\uninstall.py", line 89, in run
    uninstall_pathset.commit()
  File "D:\python\Anaconda3\lib\site-packages\pip\_internal\req\req_uninstall.py", line 450, in commit
    self._moved_paths.commit()
  File "D:\python\Anaconda3\lib\site-packages\pip\_internal\req\req_uninstall.py", line 290, in commit
    save_dir.cleanup()
  File "D:\python\Anaconda3\lib\site-packages\pip\_internal\utils\temp_dir.py", line 196, in cleanup
    rmtree(self._path)
  File "D:\python\Anaconda3\lib\site-packages\pip\_vendor\retrying.py", line 49, in wrapped_f
    return Retrying(*dargs, **dkw).call(f, *args, **kw)
  File "D:\python\Anaconda3\lib\site-packages\pip\_vendor\retrying.py", line 212, in call
    raise attempt.get()
  File "D:\python\Anaconda3\lib\site-packages\pip\_vendor\retrying.py", line 247, in get
    six.reraise(self.value[0], self.value[1], self.value[2])
  File "D:\python\Anaconda3\lib\site-packages\pip\_vendor\six.py", line 703, in reraise
    raise value
  File "D:\python\Anaconda3\lib\site-packages\pip\_vendor\retrying.py", line 200, in call
    attempt = Attempt(fn(*args, **kwargs), attempt_number, False)
  File "D:\python\Anaconda3\lib\site-packages\pip\_internal\utils\misc.py", line 135, in rmtree
    shutil.rmtree(dir, ignore_errors=ignore_errors,
  File "D:\python\Anaconda3\lib\shutil.py", line 737, in rmtree
    return _rmtree_unsafe(path, onerror)
  File "D:\python\Anaconda3\lib\shutil.py", line 610, in _rmtree_unsafe
    _rmtree_unsafe(fullname, onerror)
  File "D:\python\Anaconda3\lib\shutil.py", line 610, in _rmtree_unsafe
    _rmtree_unsafe(fullname, onerror)
  File "D:\python\Anaconda3\lib\shutil.py", line 615, in _rmtree_unsafe
    onerror(os.unlink, fullname, sys.exc_info())
  File "D:\python\Anaconda3\lib\shutil.py", line 613, in _rmtree_unsafe
    os.unlink(fullname)
PermissionError: [WinError 5] Denied to Access: 'D:\\python\\Anaconda3\\Lib\\site-packages\\~cipy\\fft\\_pocketfft\\pypocketfft.cp38-win_amd64.pyd'

(base) C:\Users\Administrator>pip install scipy --user -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
Looking in indexes: http://pypi.douban.com/simple
Collecting scipy
  Downloading http://pypi.doubanio.com/packages/56/a3/591dbf477c35f173279afa7b9ba8e13d9c7c3d001e09aebbf6100aae33a8/scipy-1.8.0-cp38-cp38-win_amd64.whl (36.9 MB)
     |████████████████████████████████| 36.9 MB 3.3 MB/s
Requirement already satisfied: numpy<1.25.0,>=1.17.3 in d:\python\anaconda3\lib\site-packages (from scipy) (1.20.3)
Installing collected packages: scipy
Successfully installed scipy-1.8.0

(base) C:\Users\Administrator>python
Python 3.8.3 (default, Jul  2 2020, 17:30:36) [MSC v.1916 64 bit (AMD64)] :: Anaconda, Inc. on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import statsmodels.api as sm
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "D:\python\Anaconda3\lib\site-packages\statsmodels\api.py", line 27, in <module>
    from .tsa import api as tsa
  File "D:\python\Anaconda3\lib\site-packages\statsmodels\tsa\api.py", line 31, in <module>
    from .filters import api as filters
  File "D:\python\Anaconda3\lib\site-packages\statsmodels\tsa\filters\api.py", line 6, in <module>
    from .filtertools import miso_lfilter, convolution_filter, recursive_filter
  File "D:\python\Anaconda3\lib\site-packages\statsmodels\tsa\filters\filtertools.py", line 18, in <module>
    from scipy.signal.signaltools import _centered as trim_centered
ImportError: cannot import name '_centered' from 'scipy.signal.signaltools' (C:\Users\Administrator\AppData\Roaming\Python\Python38\site-packages\scipy\signal\signaltools.py)
>>> exit
Use exit() or Ctrl-Z plus Return to exit
>>> exit()

(base) C:\Users\Administrator>pip install scipy==1.6 --user -i http://pypi.douban.com/simple --trusted-host pypi.douban.co
Looking in indexes: http://pypi.douban.com/simple
WARNING: The repository located at pypi.douban.com is not a trusted or secure host and is being ignored. If this repository is available via HTTPS we recommend you use HTTPS instead, otherwise you may silence this warning and allow it anyway with '--trusted-host pypi.douban.com'.
ERROR: Could not find a version that satisfies the requirement scipy==1.6 (from versions: none)
ERROR: No matching distribution found for scipy==1.6

(base) C:\Users\Administrator>pip install scipy==1.6.0 --user -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
Looking in indexes: http://pypi.douban.com/simple
Collecting scipy==1.6.0
  Downloading http://pypi.doubanio.com/packages/a1/05/9b41f6a969a0d6ad36732bdd3c936434228dafaa829932be5a51574e4958/scipy-1.6.0-cp38-cp38-win_amd64.whl (32.7 MB)
     |████████████████████████████████| 32.7 MB 3.2 MB/s
Requirement already satisfied: numpy>=1.16.5 in d:\python\anaconda3\lib\site-packages (from scipy==1.6.0) (1.20.3)
Installing collected packages: scipy
  Attempting uninstall: scipy
    Found existing installation: scipy 1.8.0
    Uninstalling scipy-1.8.0:
      Successfully uninstalled scipy-1.8.0
Successfully installed scipy-1.6.0

(base) C:\Users\Administrator>python
Python 3.8.3 (default, Jul  2 2020, 17:30:36) [MSC v.1916 64 bit (AMD64)] :: Anaconda, Inc. on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import statsmodels.api as sm
>>>

After the problem is solved, restart the jupyter notebook and enter it for normal use.


[Solved] Matplotlib scatter Draw Error: TypeError: ufunc ‘sqrt‘ not supported for the input types…rule ‘‘safe‘‘

Errors are reported as follows:

The solution is as follows:

Original program:
plt.scatter (x, y, ‘R’, label =’original scatter ‘)
modified as:
plt.scatter (x, y, C =’r’, label =’original scatter ‘)

The color setting parameter is set to: C = ‘R’

The problem was successfully resolved as follows:

XLRDError: Excel xlsx file； Not supported error reporting solutions

The reason is that pip is installed with the latest version 2.0.1 and only supports. XLS files. So pandas.read_ Excel (‘xxx. Xlsx ‘) will report an error.

You can install the old version xlrd and execute the command in CMD:

pip uninstall xlrd
pip install xlrd==1.2.0

Solved the error report!

[Solved] Dev-C++ [Error] ‘for‘ loop initial declarations are only allowed in C99 or C11 mode

When writing C language program with DEV-C + +:

[Error] ‘for’ loop initial declarations are only allowed in C99 or C11 mode

Variables declared in the for loop are only allowed in C99 or C11 mode. You need to select C99 in the language standard under tools/compiler option/code generation.

The results are as follows:

AttributeError: DatetimeProperties object has no attribute

1.Question

AttributeError： ‘DatetimeProperties’ object has no attribute ‘weekday_ name’

Simple test, run the following code:

import pandas as pd

# Create dates
dates = pd.Series(pd.date_range("7/26/2021", periods=3, freq="D"))
# Check the day of the week
print(dates.dt.weekday_name)
# Show only values
print(dates.dt.weekday)

2.Solution

weekday_ Change name to day_ name()

import pandas as pd

# Create dates
dates = pd.Series(pd.date_range("7/26/2021", periods=3, freq="D"))
# Check the day of the week
print(dates.dt.day_name())
# Show only values
print(dates.dt.weekday)

For example:

Type