I am having trouble when running the python engine in knitr. I can import some modules but not others. For example I can import numpy but not pandas.
{r, engine='python'}
import pandas
I get the error.
Quitting from lines 50-51 (prepayment.Rmd)
Error in (knit_engines$get(options$engine))(options) :
Traceback (most recent call last):
File "<string>", line 1, in <module>
ImportError: No module named pandas
Calls: <Anonymous> ... process_group.block -> call_block -> block_exec -> in_dir -> <Anonymous>
In addition: Warning message:
running command ''python' -c 'import pandas' 2>&1' had status 1
Execution halted
It must be something to do with system path and where I am pointing.
Normally in IPython i use
import sys
sys.path.append('/path/to/directory/')
To add paths. I don't know what the problem is.
Use:
{python engine.path="C:/anaconda/python.exe"}
import pandas
change C:/anaconda/python.exe to your python path.
This happened to me too, in Atom.
Check to make sure the two files are in the same directory. Put them in the same folder or path.
Then, go into Terminal or Command Line and type
cd Downloads
(or whatever large directory the files are in). Then, type in smaller folder like: cd _____, such as cd animals. There, you can open the one file that you want to have the other file import to by typing python3 -i ____.py (file name). Make sure the file has from ___(master file) import * and you can run the code in terminal.
This should work. The problem is you can't import by running the code. Instead, you have to link the two using terminal or command line.
Related
I know there has been similar problems, but unfortunately most of them are related to errors with pyperclip itself instead of the batch file, which i suspect is where the problem stems from.
Below is an MRE of my Python script:
#! python3 -> Do I have to use my version(3.8)?
# pw.py - An insecure password locker program.
import sys, pyperclip
#do something with the module
And my batch file pw.bat:
#py.exe C:\Users\KEVIN\PycharmProjects\atbs_exercise\pw.py %*
#pause
I am running python 3.8 on windows 10. I imported the pyperclip module in my python script pw.py and ran the file via pw.bat, and this in turn gives me this error:
Traceback (most recent call last):
File "C:\Users\KEVIN\PycharmProjects\atbs_exercise\pw.py", line 7, in <module>
import sys, pyperclip
ModuleNotFoundError: No module named 'pyperclip'
Press any key to continue . . .
Which shouldn't happen as I have installed pyperclip on the project using pip, and the script itself runs just fine in pycharm. What am I missing?
EDIT: I forgot to mention that I am using pycharm. So the thing is that pycharm had also installed python.exe in the project folder. And as the module pyperclip is only installed to that folder, the python.exe used in the bat must point to the one in the project folder.
i don't know why are you using py.exe. when running commands from a batch file or cmd .you should use python.exe.obviously you would need to add python to add for doing so.instead of adding py.exe to path,add python in system variable Path which is somewhere present in C:\Users\[username]\AppData\Local\Programs\Python\(your path might be diffrernt).you can add python in Path by following this post
after adding python to path just use the following batch-file:
#echo off
python path-to-your-py-file\filename.py
This is a very basic question on how to code in python and run your script from a very beginner.
I'm writing a script using Xcode9.4.1 which is supposed to be for python3.6. I then have an sh script run.sh, in the same folder of the script (say "my_folder") which simply looks like
python my_script.py
The python script looks like
from tick.base import TimeFunction
import numpy as np
import matplotlib.pyplot as plt
v = np.arange(0., 10., 1.)
f_v = v + 1
u = TimeFunction((v, f_v))
plt.plot(v, u.value(v))
print('donne!\n')
But as I try to run my_script.sh from the terminal I get a "ImportError: No module named tick.base" error.
But the tick folder is actually present in "my_computer/anaconda3/lib/python3.6/site-packages" and up to last week I was using Spyder from anaconda navigator and everything was correctly working, so no "import error" occurred.
The question is quite trivial, in some sense it simply is "what's the typical procedure to code and run python script and how modules are supposed to be imported-downloaded when running on a given machine?"
I need it since my script is to be run on another machine through ssh and using my laptop to make some attempts. Up to last year I used to work in C and only need to move some folders with code and .h files.
Thank for help!
EDIT 1:
From the Spyder 3.2.7 setting, where the script was giving non problem, I printed the
import sys
print(sys.path)
The -manually- copied the content to the sys.path variable in my_script.py and rerun 'run.sh' and now getting a new (strange) error:
Traceback (most recent call last):
[...]
File "/Users/my_computer/anaconda3/lib/python3.6/site-packages/tick/array/build/array.py", line 106
def tick_double_array_to_file(_file: 'std::string', array: 'ArrayDouble const &') -> "void":
^
SyntaxError: invalid syntax
First, check the python which you are calling the script with is pointing to the anaconda python and it is of the same version you are expecting it to be. You can do "which python" command in Linux and Mac to which the path which points to python. It if is pointing to some different version or build of python than the one which you are expecting then add the needed path to the system environment PATH variable. In Linux and Mac this can be done by adding the following line in the .bashrc file at the /home/ folder:
export PATH=/your/python/path:$PATH
And then source the .bashrc file.
source .bashrc
If you are on a operating system like cent os ,breaking the default python path can break your yum so be careful before changing it.
I am running a script in PyCharm and under the Project Interpretor I have the path
C:\envs\conda\keras2\python.exe
When I try to run the script via ssh on the server I get a 'no module named' error. I get
/usr/bin/python as the ans to 'which python' on the server itself. Could you tell me which path I must add for the script to run properly?
I am working on a project in PyCharm. The project has the following structure:
/projectRoot/
folder1/
somecode.py
utils/
__init__.py
myutils1.py
I'd want to know how I can do an import such that the import works when running the code in the pyCharm console in an interactive manner, as well as when running the code using the
python somecode.py
command in the terminal.
Currently I do:
from utils.myutils1.py import myClass
But command line I get the error:
File "somecode.py", line 10, in
from utils.myutils1 import myClass ModuleNotFoundError: No module named 'utils'
and on PyCharm:
Traceback (most recent call last): File
"/home/ubuntu/anaconda3/lib/python3.6/site-packages/IPython/core/interactiveshell.py",
line 2881, in run_code
exec(code_obj, self.user_global_ns, self.user_ns) File "", line 1, in
from utils.myutils1 import myClass ModuleNotFoundError: No module named 'utils'
Any recommendations on the proper folder structure for modules within a project, and how to import them properly?
Thanks!
To explain the answer I recreated that project structure you had
/projectRoot/
folder1/
somecode.py
utils/
__init__.py
myutils1.py
somecode.py
from utils.myutils1 import myclass
if __name__ == "__main__":
print(myclass)
myutils1.py
myclass="tarun"
Running them from pycharm works without any issues, but running them from terminal will produce below error
File "somecode.py", line XX, in <module>
from utils.myutils1 import myclass
ModuleNotFoundError: No module named 'utils'
The issue is that Pycharm does few things for you because which you don't realize why it is not working in the terminal. So before telling you what you need to, I will tell you two things that PyCharm does on its own.
Python Console
When you launch a Python Console from Pycharm, there is some code that gets executed, using preferences.
As you can see there are two options
[X] Add content roots to PYTHONPATH
[ ] Add source roots to PYTHONPATH
And then a starting script as well. So what this does is that it adds the root of your project to python's path. Which is controlled by two main ways sys.path and PYTHONPATH environment variable
If I run the below code in Python Console
>>> import sys
>>> sys.path
['/Applications/PyCharm.app/Contents/helpers/pydev',
'/Applications/PyCharm.app/Contents/helpers/pydev',
'/Users/tarun.lalwani/.virtualenvs/folderstructure27/lib/python27.zip',
'/Users/tarun.lalwani/.virtualenvs/folderstructure27/lib/python2.7', ....
'/Users/tarun.lalwani/.virtualenvs/folderstructure27/lib/python2.7/site-packages',
'/Users/tarun.lalwani/Desktop/payu/projects/folderstructure27']
As you can see '/Users/tarun.lalwani/Desktop/payu/projects/folderstructure27' is added to the Python terminal.
Python Configurations
When you configure to RUN in code using Pycharm, you have similar two options.
We can change the code of our somecode.py to below
import os
print (os.environ['PYTHONPATH'])
import sys
print (sys.path)
/Users/tarun.lalwani/Desktop/payu/projects/folderstructure27
['/Users/tarun.lalwani/Desktop/payu/projects/folderstructure27/folder1',
'/Users/tarun.lalwani/Desktop/payu/projects/folderstructure27', ....,
'/Users/tarun.lalwani/.virtualenvs/folderstructure27/lib/python2.7/site-packages']
From the output we can see that PYTHONPATH is set to current project folder.
Running from terminal
Now let's run the somecode.py from terminal with the modifications we made.
$ python somecode.py
Traceback (most recent call last):
File "somecode.py", line 2, in <module>
print (os.environ['PYTHONPATH'])
File "/Users/tarun.lalwani/.virtualenvs/folderstructure27/bin/../lib/python2.7/UserDict.py", line 40, in __getitem__
raise KeyError(key)
KeyError: 'PYTHONPATH'
So that indicates there is no PYTHONPATH when we ran it in terminal. Let us run it again by removing the print(os.environ['PYTHONPATH']) code. You will get the below output
['/Users/tarun.lalwani/Desktop/payu/projects/folderstructure27/folder1', ...
'/Users/tarun.lalwani/.virtualenvs/folderstructure27/lib/python2.7/site-packages']
Traceback (most recent call last):
File "somecode.py", line 7, in <module>
from utils.myutils1 import myclass
ImportError: No module named utils.myutils1
As you can see folder1 is added to sys.path because it is the folder containing somecode.py, but the root folder has not been added. The fix in terminal is simple, which is to set the root directory path in PYTHONPATH.
PYTHONPATH=`pwd`/.. python somcode.py
And now the code will work from terminal also.
But the way they work are different from Python Console.
IMPORTANT NOTE:
Python Console using PyCharm on remote interpreter.
If running the python console using the remote interpreter option pycharm will fail. This is because it will append the path of the local PC and not the path of the remote server.
In order to fix this problem one has to add a mapping between the local PC directory and the remote server path.
You can use utils package inside folder1 folder:
Then the code will work either way:
from utils.myutils1 import myClass
Similar error here and this appears to be working for me:
Make sure Project Interpreter is set to, for example: C:\Python36\python.exe (in my case) and not a copy somewhere or another.
'File > Settings > Project ____ > Project Interpreter'
Or, long story short, if that route isn't cooperating, can also try finding workspace.xml and manually change SDK_HOME before starting PyCharm:
<option name="SDK_HOME" value="C:\Python36\python.exe" />
PyCharm 2016.2.3, Mac OS X 10.11.1, Python 3.5 (Homebrew);
I have this folder structure
project
/somepackage
/subpackage
__init__.py
bar.py
__init__.py
foo.py
foo.py:
import somepackage.subpackage.bar
print("foo")
bar.py:
print("bar")
So my expected output is
bar
foo
This works fine when run from PyCharm. However, when I run it from my terminal I get an ImportError:
$ pwd
$ /home/project (not the actual path; just omitting some personal stuff)
$ python3.5 somepackage/foo.py
File "foo.py", line 1, in <module>
import somepackage.subpackage.bar
ImportError: No module named 'somepackage'
I have found this question, which is about the same problem. However, none of the suggested solutions work for me, as I am indeed using the same Python interpreter as PyCharm does and I am currently in the folder that contains the /somepackage folder.
Does anyone have any other suggestions about how to solve this issue?
You are running foo.py like a script, but you are really using it like a module. So the proper solution is to run it as a module:
python3 -m somepackage.foo
For the record, another alternative is to edit your path like:
export PYTHONPATH=.
(Or you could put the absolute directory in there, and of course you should append any other directories that are already in your PYTHONPATH.) This is closer to what PyCharm does, but is less philosophically correct.
Setting PYTHONPATH is what makes it work, as noted above. I use the following VSCODE .env content so that it works for any project:
PYTHONPATH=${PROJ_DIR}:${PYTHONPATH}
This is essentially what PyCharm does when you check "Add Content Roots to PYTHONPATH" in your run/debug configuration. It's a helpful setting, but it spoils you because your code fails outside PyCharm.
Or, if you run in terminal, first export:
export PYTHONPATH=...
Took me days to work all this out.
i solved my problem by two steps on Linux:
first step
go to the root directory of your project and set:
export PYTHONPATH=$PATHONPATH:`pwd`
second step
run python3 -m somepackage.foo
remember Without '.py' suffix
I just had the same problem using scapy.layers.http Module,
this problem occurred on my Kali (linux-Debian) but run fine on Win-10 (after few modifications.)
packet was installed (scapy-http) correctly and the program was running in PyCharm but not as script (from terminal)
I tried solving it with reinstalling in main root, and messing with the sys.path but None have worked.
Troubleshoot & Solution
I found that it looks for the http module in:
/usr/local/lib/python3.7/dist-packages/scapy/layers/init.py
and got the ImportError:
from scapy.layers import http --->
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: cannot import name 'http' from 'scapy.layers' (/usr/local/lib/python3.7/dist-packages/scapy/layers/__init__.py)
So then I checked where scapy-http is really installed, which is module called http.py, so I just copied it to:
/usr/local/lib/python3.7/dist-packages/scapy/layers/
found the http.py file in :/usr/local/lib/python3.7/dist-packages/scapy_http/
And that did it :)!
I know its a bit glitchie but that worked!
I just moved from sublime to eclipse and ran a program which contained the time library 'Arrow'.
It first said the no module could be found, so I then I added the source folder to the PyDev python path, now it's giving me this error:
Traceback (most recent call last):
File "C:\Users\David\workspace\Loan_rates\master.py", line 8, in <module>
import arrow
File "C:\Python27\Lib\site-packages\arrow\arrow.py", line 16, in <module>
from arrow import util, locales, parser, formatter
ImportError: cannot import name util
I think the problem is that you added:
C:\Python27\Lib\site-packages\arrow to your Interpreter PYTHONPATH -- which makes it resolve C:\Python27\Lib\site-packages\arrow\arrow.py as the arrow module.
The solution is removing C:\Python27\Lib\site-packages\arrow from the PYTHONPATH -- C:\Python27\Lib\site-packages should be enough in this case.
Try comparing the command line that works (when launched successfully from your terminal) to what PyDev is constructing.
To see the command line PyDev actually uses, open the launch configuration (Run menu -> Run Configurations... -> Python run -> Select your launch on the left) and in the Interpreter tab press See resulting command-line for the given parameters.
This is a screenshot of what I am referring to: