ModuleNotFoundError: No module named 'sktime.transformers'

I tried importing

from sktime.transformers.series_as_features.rocket import Rocket

When I run this, I encounter this error ---

File "C:\Users\Success\AppData\Local\Temp/ipykernel_8440/2082396040.py", line 1, in <module>
runfile('C:/Users/Success/Desktop/untitled8.py', wdir='C:/Users/Success/Desktop')

File "C:\Users\Success\anaconda3\lib\site-packages\debugpy\_vendored\pydevd\_pydev_bundle\pydev_umd.py", line 167, in runfile
execfile(filename, namespace)
File "C:\Users\Success\anaconda3\lib\site-packages\debugpy\_vendored\pydevd\_pydev_imps\_pydev_execfile.py", line 25, in execfile
exec(compile(contents + "\n", file, 'exec'), glob, loc)
File "C:/Users/Success/Desktop/untitled8.py", line 11, in <module>
from sktime.transformers.series_as_features.rocket import Rocket

ModuleNotFoundError: No module named 'sktime.transformers

Solution

The package was not installed.

There are various ways one can install sktime (See here official documentation). Will leave below two options:

Using PyPI
Using conda

Option 1: Using PyPI

For that, access the prompt for the environment that you are working on, and run

pip install sktime

To install sktime with maximum dependencies, including soft dependencies, install with the all_extras modifier:

pip install sktime[all_extras]

Option 2: Using conda

For that, access the prompt for the environment that you are working on, and run

conda install -c conda-forge sktime

To install sktime with maximum dependencies, including soft dependencies, install with the all-extras recipe:

conda install -c conda-forge sktime-all-extras

By the time I am writing this, this last one (Source):

does not include dependencies catch-22, pmdarima, and tbats. As these packages are not available on conda-forge, they must be installed via pip if desired. Contributions to remedy this situation are appreciated.

Notes:

In my case when installing following Option 1, I was getting the error

ERROR: Cannot uninstall 'llvmlite'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

And, for that, running, in the environment's prompt, the following, solved the problem:
```
pip install --ignore-installed llvmlite
```
If this previous one didn't work, other alternatives, such as
```
pip install llvmlite --ignore-installed
```
Or
```
pip install llvmlite
```
Might work.
If the above doesn't work for Option 2, on Anaconda Prompt one can also use pip so the following may help
```
pip install sktime
```
Note, however, that pip doesn't manage dependencies the same way conda does and can, potentially, damage one's installation.
If one is using pip on conda as per the previous note, and one gets

ERROR: Could not install packages due to an OSError: [WinError 5] Access is denied: 'C:\Users\johndoe\anaconda3\envs\Test\Lib\site-packages\~umpy\core\_multiarray_tests.cp310-win_amd64.pyd' Consider using the --user option or check the permissions.

Doing the following should solve the issue
```
pip install sktime --user
```