Python beginner here. I would like to use Spyder as my Python IDE. Alas the standalone version does not include pip and I want to work with "Vanilla Python" rather than Anaconda. So I installed Spyder via
pip install spyder, which works fine. However, when running spyder3 in the command window, nothing happens. I get no error, but Spyder does not launch either. While the Spyder website says custom installation may be tricky, it does not provide a guide on how to get it done. Does someone know how? OS is Windows 10.
you need to follow this commands:
python -m venv spyder-env
spyder-env/Scripts/activate.bat
pip install spyder
more info
Update: Tried again with Python 3.10.4. "spyder" now exists in the Scripts folder and does launch when typing spyder in cmd. Works for me now.
I want to install the module arcpy in spyder anaconda. I run the following command in Anaconda Prompt: conda install arcpy -c esri, which follows https://pro.arcgis.com/en/pro-app/latest/arcpy/get-started/installing-arcpy.htm. But it fails. The message shows as below:
The python version is 3.7.10. I'm also using ArcGIS Desktop 10.7.1.
Does anyone know how to figure this out? Thanks
You need to run Spyder within the ArcGIS Pro conda environment, that is c:\Progra~1\ArcGIS\Pro\bin\Python\envs\arcgispro-py3
See: https://pro.arcgis.com/en/pro-app/latest/arcpy/get-started/using-conda-with-arcgis-pro.htm
I am trying to make a jupyter notebook in visual studio code but I keep getting this:
''Unable to start session for kernel Python 3.8.3 64-bit ('Lenovo':
virtualenv). Select another kernel to launch with.''
I have anaconda installed and the jupyter notebook works fine in the anaconda navigator. I also tried to use python 3.8.3 base:'conda' but it didnt work. I'm using windows 10
This issue also occurs on my computer. The solution is to restore the version number of a dependency package "traitlets" of ipython kernel to 4.3.3.
You could try to use "pip list" to view the version of the module "traitlets" in the current virtual environment. If it shows version 5.0, it is recommended that you use version 4.3.3.
You could reinstall "traitlets 4.3.3" with the following command:
python -m pip install 'traitlets==4.3.3' --force-reinstall
If this command is not available, you could use 'pip' to uninstall traitlets5.0 (pip uninstall traitlets) and then use 'pip' to install traitlets4.3.3.(pip install traitlets==4.3.3)
Reference: Unable to start session for kernel Python.
I had the exact same problem. Fix it by uninstalling the Python extension that is linked to that error message.
If you are using conda to manage your Python environments, activate your target environment at a command prompt, then enter the following:
$ conda install traitlets=4.3.3
This solved the problem for me.
I have installed Tensorflow and Keras by Anaconda (on Windows 10), I have created an environment where I am using Python 3.5.2 (the original one in Anaconda was Python 3.6).
When I try to execute import keras as ks, I get ModuleNotFoundError: No module named 'keras'.
I have tried to solve this issue by sys.path.append(C:\\Users\\ ... \\Anaconda3\\python.exe)
with both notebook and console, but I continue to get the same error.
How could I solve this issue?
Please try the following:
Run these in the jupyter notebook cell:
import sys
sys.path
sys.executable
It may not be pointing to your virtual environment but to the root
The fix is to install the jupyter notebook from inside your virtual environment
$ . your_env/bin/activate
(your_env)$ python -m pip install jupyter
Now you can import tensorflow or keras
Jupyter uses iPython under the hood, for python. So when you install Jupyter, it will also install iPython. There was one issue when I installed keras and Jupyter: I already have iPython installed in my root Anaconda environment. This is the output after I install Jupyter and keras:
In [2]: import sys; sys.path
Out[2]:
['/home/user/anaconda3/bin',
'/home/user/anaconda3/lib/python36.zip',
'/home/user/anaconda3/lib/python3.6',
'/home/user/.ipython']
Notice that even though I am inside my conda environment, it still looks for libraries in my root conda environment. And of course keras isn't there.
The step to fix is simply re-activate my environment, with:
source deactivate && source activate [my_env]
Then I am using a correct ipython:
Out[2]:
['/home/user/anaconda3/envs/ml3/bin',
'/home/user/anaconda3/envs/ml3/lib/python36.zip',
'/home/user/anaconda3/envs/ml3/lib/python3.6',
'/home/user/.ipython']
(Not an answer but some troubleshooting hints)
sys.path is not the path to your Python executable, but the path to the libraries.
Check where Keras is installed and check your sys.path. How exactly did you install Keras?
Try to execute the same command from the Python interpreter. Do you have the same issue?
How did you install Jupiter, is the sys.path visible from there the same as sys.path visible from your Python interpreter?
Do Jupiter and Keras use the same version of Python?
You might try to uninstall Jupiter and install it again, and hope that the new installation picks up the packages which are already installed. What could happen is that you have more than one Python installation and different libraries being installed to the different places. sys.path, when requested from different environments, might give you a hint if that's true.
The kernel in console and jupyter are not necessarily the same, and the problem might be that you are not on python 3.5.
python --version
should tell you what is running in the console, and in jupyter you should see it as a choice on starting a new notebook. For me, the information in
Using both Python 2.x and Python 3.x in IPython Notebook
was very helpful.
I have realized that I had two different Jupyter's directories, so I have manually deleted one on them. Finally, I have reinstalled Anaconda. Now Keras works properly.
If you are a windows/mac user who are working on Jupyter notebook “pip install keras” doesn't help you .Try the below steps.It was solved for me
1. In command prompt navigate to the “site packages” directory of your anaconda installed.
2. Now use “conda install tensorflow” and after “conda install keras”
3. Re-start your Jupyter notebook and run the packages.
Acually, I did this command pip install keras and sudo -H pip3 install keras and pip3 install keras. None of them worked. I added the following command and everything worked like a charm:
pip install Keras. Yes a capital 'K'
Here's how I solved this problem.
First, the diagnosis. When I run which python in a terminal window on my Mac (the same terminal I used to launch jupyter, I get /Users/myusername/.conda/envs/myenvname/bin/python, but when I run the same command from a terminal within Jupyter, I get /usr/bin/python. So Jupyter isn't using the correct python executable; the version it's using doesn't have any of my packages installed.
But which jupyter returns /usr/bin/jupyter; it's using a version of jupyter that isn't coming from within my conda environment. I ran conda install jupyter and now which jupyter returns /Users/myusername/.conda/envs/myenvname/bin/jupyter (for some reason I had to restart the terminal window for this to take effect.) Then if I relaunch jupyter notebook, the notebook is using the correct version of Python and I have access to all my installed conda packages. 👍
I had a similar problem.
I added the Conda environment as a new kernel.
First, install ipykernel:
conda install ipykernel
Next, create the kernet:
python -m ipykernel install --user --name tf-gpu --display-name "TensorFlow-GPU"
Now, when you run your notebook, change the kernel to the new one, to "TensorFlow-GPU" in this example.
I am on a Ubuntu machine. I installed Jupyter Notebook using the following command.
sudo snap install jupyter
But Jupyter cannot find any of the installed python packages which were installed using terminal. I checked if jupyter and terminal are pointing to same python installation using this code.
import sys; print(sys.executable)
Terminal shows this output.
'/usr/bin/python3'
And Jupyter shows this one.
'/snap/jupyter/6/bin/python'
Now I want the jupyter to point the same installation path as the terminal shows. How can I do that?
your jupyter is not placed in default packages location due to installing it with snap. install jupyter with pip this way: pip install jupyter
if you dont have pip then download it. it usually is included in python package