I just installed python in my MacOS using the Anaconda distribution. My problem is although the packages (eg. matplotlib, numpy, scipy) came included with the installation, I have to import them to spyder every time which is tedious and it's also tiring that that I have to remind spyder of their functionalities.
For eg, in Windows, I only needed to type in the console:
x=array([...,...,...])
but in my mac it would have to be:
import numpy as py
and then type into the console:
x=py.array([...,...,...])
I do notice that in that the spyder-python console (Windows version), there is a text saying,
Imported NumPy 1.8.1, SciPy 0.13.3, Matplotlib 1.3.1 + guidata 1.6.1, guiqwt 2.3.2
Type "scientific" for more details.
That is probably the reason why I don't have to import anything in Windows because Spyder already did it.
How do I do the same for Mac?
Thank you
Related
im using Pycharm 2022.2.3.
I have Anaconda Navigator 2.3.2. Created in anaconda a new virtual environment based on python 2.7 called testpy2. Added the numpy package needed to execute a code. I did it from Ananconda Navigator GUI. The installation was succesful. I could see now numpy in my installed package list.
Open Pycharm project, select as interpreter the existing conda environment test2py.
The code is:
import random
import numpy as np
print "Hola"
The problem is it give the error: ImportError: DLL load failed when importing Numpy.
So I cant execute the program because of numpy.
When i go to see the packages something similar to:
then i got stuck in loading. Pycharm should recognize and load all the packages in the conda environemnt as shown in the image above, but in my case i got stuck in loading.
Im running on Windows 10 and i dont have any python installed at all
Any help would be apreciated.
When I import Bio in a Jupyter notebook in Anaconda on a Mac I this error: No module named 'Bio'.
Somehow the import settings weirdly case sensitive. This will fix it:
# Installing the biopython libraries in this runtime environment
!pip3 install biopython==1.78
# The next two lines fix the error "No module named 'Bio'"
# that occurs with an Anaconda Navigator installation on OSX
# by making python imports case insensitive
import os
os.environ['PYTHONCASEOK'] = '1'
# On to regularly scheduled imports.
import Bio
Further experiments show that other permutations won't work in both google colab and Jupyter; and I am not sure why:
I have run some experiments with this and after uninstalling all bio and biopython variants (just to be sure, they were not actually installed), I fount that
!pip3 install bio
import bio
works on anaconda but not on google colab. If I import Bio with a capital B it works on neither of them.
!pip3 install bio
import os
os.environ['PYTHONCASEOK'] = '1'
import Bio
print("All's well")
works on Jupyter but errors out "ModuleNotFoundError: No module named 'Bio'" on collab. Import lower case bio behaves the same.
# Solution that works on both colab.google.com and
# Anaconda Navigator Jupyter notebooks
!pip3 install biopython
import os
os.environ['PYTHONCASEOK'] = '1'
import Bio
works for Anaconda Jupyter and Google Colab. If you change the case to 'import bio' it stops working on Google.
1st, the Disclaimer: I looked at numerous questions here, there is question about uninstalling all pip–installed, uninstalling matplotlib, moving to 3.5 from 2.7, –– but I didn't find an answer to my specific problem. Sorry if I didn't look hard enough.
Basically, my problem is I have a mess of different packages installed by different means at different times. Manifestations of this are:
1) I can import numpy from python but not from Jupyter notebook:
------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-1-5a0bd626bb1d> in <module>()
----> 1 import numpy
ImportError: No module named numpy
2) I cannot import nltk:
...
File "numpy.pxd", line 155, in init sklearn.utils.murmurhash (sklearn/utils/murmurhash.c:5029)
ValueError: numpy.dtype has the wrong size, try recompiling
likely many more.
I recently uninstalled jupyter and anaconda, installed anaconda again, - this didn't help.
I cannot uninstall numpy / scipy , although I can use them (?!?):
>:~%python -c 'from numpy.random import rand; print rand()'
0.946167984715
>:~%pip uninstall numpy
Cannot uninstall requirement numpy, not installed
I have two versions of Python:
2.7.11 under /usr/local/bin/ pointing to /usr/local/Cellar/python/2.7.11/bin/python
2.7.10 under /usr/bin/ pointing to
/System/Library/Frameworks/Python.framework/Versions
-- although the default is 2.7.10 (numpy works with it), and I think 2.7.11 was added by Anaconda (incorrectly, because it doesn't see numpy).
Yesterday I uninstalled everything I could think of, then upgraded to a new version of Mac OS (10.12.2 Sierra), and then re-installed anaconda – in vain.
I am close to reformatting the disk and starting from scratch.
Is there a better option?
Thank you! and sorry for so many details.
Not sure exactly on a MAC but these are the things to try on windows and it is probably similar on MAC.
Start with a clean install of anaconda then try "where python" and "where jupyter" (it is "which" instead of "where" on linux). This tells you where it is looking for the executables. Both should be subfolders of anaconda. If they are not check your PATH variable.
Now start python or jupyter; import sys and try sys.path. That tells you where python is looking for stuff. It should look only in anaconda sub folders.
I have python2.7.8 on mac, things I did:
sudo easy_install pip - worked.
pip install numpy:
Requirement already satisfied (use --upgrade to upgrade): numpy in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python
I also did "pip upgrade numpy" - no luck. What's wrong?
Your problem is a conflict of different Python versions.
I would recommend installing Python and all the packages, such as numpy, scipy, matplotlib, pandas, etc via Brew
See this tutorial: https://github.com/Homebrew/homebrew/blob/master/share/doc/homebrew/Homebrew-and-Python.md
You can verify which Python you're running with which python or which python3 in Terminal.
This solution is more flexible and cleaner in my opinion than using Conda/Miniconda. However it is also a bit more lengthy to install, as you need to have Xcode, devtools installed to build everything
Could it be that you have multiple versions of python installed? What happens if you run python using the full path like this:
$ /System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2
instead of just python2?
In my experience on Mac (and other OS too) it is best to go with Anaconda / Miniconda. This is especially true for packages like NumPy and others from scientific stack.
While Anaconda is a full-blown distribution with about 200 packages, Miniconda is just Python with a few basic libraries. The big advantage is that all packages install as binary. Further, it makes it very simple and stable to install multiple Python versions side by side. For example:
conda create -n py27 python=2.7
creates a new environment with Python 2.7. Activate with:
source activate py27
Now:
conda install numpy
installs NumPy cleanly.
You can do the same for Python 3.5 and switch between environments with source activate.
After jumping from one stackoverflow answer to another I found the solution!
my problems were:
numpy at different location( actually at right, expected-to-be location). It was the IDLE that looks for its own default folder where python2.7 installed.
I checked that my numpy is working like this, run this script to check it is working:
import os
import sys
import pygame
sys.path.insert(0, '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python')
import numpy
pygame.init()
print "( using __version__): " + numpy.__version__
print numpy.version.version
user_paths = os.environ['PYTHONPATH']
print(user_paths)
sys.path insertion adds additional path to IDLE, so it knows where to look for numpy.
Then I check if numpy truly imported - i just print its version. Right now it is 1.8.0rc.
I want to find a way to avoid using this syspath insertion all the time.
So far so good - for now.
I had a similiar problem with numpy. However, it was resolved by choosing the right environment. If you are using VScode, open the command palette (ctrl+shift+p) and type
Python: Select Interpreter.
From there, try choosing the right virtual environment/Interpreter.
I have Python 2.7, NLTK and NLTK Data installed. Since I didn't know OSX 10.9 came with matplotlib and numpy, I installed matplotlib 1.2 and numpy packages. Now when I run this code in IDLE
text4.dispersion_plot(["citizen", "democracy", "freedom", "duties", "america"])
I get the error
'To open "Python," you need to install X11'.
Please help. Thanks.
Ananya