I try to install the symbolic package for the Octave in the Mac, https://octave.sourceforge.io/symbolic/index.html, which path should be set?
More fundamental problem is that I follow the commands suggested by https://octave.sourceforge.io/ to install the symbolic package described as above, but the "pkg install" is always shown "pkg: command not found" in the command line. How to deal with it?
I had a similar problem and resolved it by using "pkg -forge install symbolic", which installs from the forge central repository.
I guess you entered the pgk install command in the osx shell. It has to be issued in octave. Start octave first, then run pgk install symbolic in octave´s command line.
To see installed package list user pkg list command.
Related
I tried pip3, it still doesn't do anything. I tried to reinstall it from reinstalling python or installing it in idle, but if i try to do "python get-pip.py" it just goes to another line, it doesnt do anything. im on windows btw
Edit: I followed what the commenter said, and if i type "py -m pip install" it lets me install a package so tysm
Try adding pip to environment variables . Original answer
On Windows pip3 should be in the Scripts path of your Python installation:
C:\path\to\python\Scripts\pip3
Use:
where python
to find out where your Python executable(s) is/are located. The result should look like this:
C:\path\to\python\python.exe
or:
C:\path\to\python\python3.exe
You can check if pip3 works with this absolute path:
C:\path\to\python\Scripts\pip3
if yes, add C:\path\to\python\Scripts to your environmental variable PATH
I am very new to python and plan to use psychopy quite a lot. I am on a work computer but have full admin rights.
Psychopy came with python version 2.7.11 and includes setuptools already.
I am trying to install the selenium module, but having trouble getting pip to work at all.
In cmd, it is recognising the 'python' command, so I know python is in my path.
I get the message "can't open file 'pip': [Errno2] No such file or directory" from:
python pip install selenium
I get " 'pip' is not recognised as an internal or external command" from:
pip install selenium
When I change directory to where pip is located, I get:
Fatal error in launcher: Unable to create process using '"'
Using pip2 makes no difference.
It seems a simple thing but where am I going wrong with this?!
I never really got to the bottom of this, but this is what I found out and here are the commands that worked for me in Windows. Be aware that I am far from expert!
To run python scripts (*.py) from command line (cmd) then C:\PsychoPy2 and C:\PsychoPy2\DLLs need to be in path. ('Path' contains directories or file extensions that can be more globally accessed, i.e. do not require you to change the prompt to the relevant directories first).
To check, open cmd and either type echo %PATH% or just type python. (If python starts, the line will say >>>. You can exit by typing quit())
To add to path, get properties of computer, then advanced system settings, then environment variables.
To check pip.exe (a sort of installation wizard) is installed, either search for the file, or check C:\PsychoPy2\Scripts for it. This may also need to be in path.
To reinstall the latest versions of pip and setup tools, I went to cmd and typed:
python -m pip install -U pip setuptools
If the same code did not work for other modules (which in my case was due to network access), then I downloaded the wheel file (*.whl) for that module (from their website) and ran the following code:
python -m pip install c:/modulename.whl
These may not be the correct ways of doing things, but they worked for me when I couldn't get other ways to work!
I've just had the exact same issue with the pip install, and a conflict with PsychoPy installations. I think it's because python automatically wants to call on the path that's been set by Psychopy, so it can't get to the 'pip' folders that for me, remain in a temporary/hidden file. This wasn't intuitive for me - on any machine without psychopy python just 'works' when you download it.
In various educational guides, I have been guided to install Python modules with an easy one-line command entered in the terminal: pip install whatever
Well, when I type "pip install" it is not found.
Elsewhere in Stack Overflow the following instructions have been given:
Use apt-get -- but I am not using linux
Use easy-install pip -- but
it also produces command not found.
Use easy-install3 pip -- same problem: command not found.
Does PIP not install when you install Python 3.6?
Do I really have to edit the path myself - it seems to me, if necessary, the developers who created the installer would have done this and the path would have been updated when Python was installed.
Poking around the hidden system folders in OS X, I see that there is an alias called pip3.6 in usr/local/bin that was created a week ago when I installed Python 3.6.
I would try:
pip3.6 install whatever
Right, worked it out now.
Pip is installed when Python 3.6 is installed - but instead of typing "pip install", you type:
pip3.6 install <ModuleYouWant>
I guess this is so people can run Python 2.7 and 3.6 simultaneously.. it'd be nice if it were a little more intuitive though, or there were some instructions, or it just worked as pip gave you the option "2.7 or 3.6?"
For those OS X users in the dark like I was, please note that system files like the usr folder can be seen in Finder if you press Command+Shift+G then in the dialog box that pops up type /usr (There are other ways to see hidden folders too).
I am working on Windows 10. I want to run a "make build" in MINGW64 but following error comes up:
$ make build
bash: make: command not found
I want to build Glide for Golang
I tried following:
$ sudo yum install build-essential
bash: sudo: command not found
As well as:
$ yum install build-essential
bash: yum: command not found
And:
$ apt-cyg build-essential
bash: apt-cyg: command not found
How can I "work-around" this problem?
Go to ezwinports, https://sourceforge.net/projects/ezwinports/files/
Download make-4.2.1-without-guile-w32-bin.zip (get the version
without guile)
Extract zip
Copy the contents to C:\ProgramFiles\Git\mingw64\ merging the folders, but do NOT overwrite/replace any exisiting files.
You can also use Chocolatey.
Having it installed, just run:
choco install make
When it finishes, it is installed and available in Git for Bash / MinGW.
You have to install mingw-get and after that you can run mingw-get install msys-make to have the command make available.
Here is a link for what you want http://www.mingw.org/wiki/getting_started
We can't use the 'make' command on windows and we don't get it preinstalled with MINGW. So to use it, you need to download it first. The steps are as follows-
Go to https://sourceforge.net/projects/mingw/postdownload and download it.
After the installation is over, go and check if bin folder is present in the directory of MINGW .
If everything works well till now, change the environment variables- go to settings of your laptop and type Environment variables. Go to it's section and click on 'environment variables' at the end.
On the section where 'path' is written, add a new file - the location of the bin file and save.
Install make by typing the following on mingw command line :
mingw-get install mingw32-make
Now make is installed. To use it in command line just write "mingw32-make" in place of "make".
Try using cmake itself.
In the build directory, run:
cmake --build .
Go to downloads of jmeubank.github.io/tdm/gcc : https://jmeubank.github.io/tdm-gcc/download/
Download 64+32-bit MinGW-w64 edition.
Run the .exe file.
Click on Remove if you have tdm-gcc already.
Then Click on Create to install tdm-gcc.
Complete the installation.
Add path to environment variable if not added automatically.
Now run mingw32-make on your terminal / command prompt.
Hope this works
You have to install make first. Run any of the below commands and it will work.
pip install make
OR
conda install make
I use Ipython Notebook and at times need to install new python packages like plotly, scikit etc. I have already tried using the most popular methods PIP and Easy Install to install the packages directly from cmd in windows but neither works. Here is the error that I get-
C:\Users\xxxx>pip install plotly
Fatal error in launcher: Unable to create process using '"'
And with easy install, I get some error as well.
Is there a third way of installing packages?
May be manually installing the package after downloading the .tar.gz file?
I found the answer. In case when both pip and easy_install fails, there is a third way (as simple as pip and easy_install).
Step 1) Go to https://pypi.python.org/ to find the desired python module/package and download the *.tar.gz file (example name: plotly-1.9.6.tar.gz) and save it anywhere.
Step 2) Unzip the file to get plotly-1.9.6. Inside this folder you will find setup.py. Open cmd and browse till the root folder of setup.py and use this command -
python setup.py install
And you are good.
If you know of any fourth method, do share it here.