I am having a similar issue to this problem.
I want to download Meson for Windows and used the following command:
pip3 install meson
This installs in my site-packages folder, specifically c:\users\user\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages\mesonbuild
However, running meson or python3 meson.py results in an error:
'meson' is not recognized as an internal or external command, operable
program or batch file.
When looking at the mesonbuild directory within site-packages, I seem to be missing the meson or meson.py file. Has anybody ever come across this issue before?
After opening up Visual Studio, and looking at the installed Python packages in my environment, I noticed this interesting information window above the list of my Python packages:
Due to new security restrictions, installing from the internet may not
work on this version of Python.
After seeing this, I decided to install Meson through the website's MSI installer. Indeed, after trying to download the installer, Windows threw up all kinds of security warnings and "are you sure you want to do this" notifications before I convinced Windows that I really did want to install Meson.
I just wanted to share this with anybody that might have the same issues. The MSI installer worked for my needs.
Try the following :
python3 -m mesonbuild.mesonmain build
Meson pip package contains meson and mesonbuild modules. The meson module serves as Python entry point, which, during an initial execution of setup.py, associates mesonbuild.mesonmain:main with command line name 'meson'. (Explain Python entry points?). To invoke meson via python3 use python3 -m mesonbuild.mesonmain build, which writes build config into 'build' directory (provided that there is meson.build file in the current directory.) There is no such file 'meson.py' in mesonbuild module and meson module does not contain any Python code.
Related
I'm trying to get Perl's Finance::Quote module working after MacOS upgrade to 11.4. One of the dependencies is B::Keywords. B::Keywords installation fails a test with this error:
> sudo cpan B::Keywords
[...]
Can't open /System/Library/Perl/5.30/darwin-thread-multi-2level/CORE/keywords.h: No such file or directory at t/11keywords.t line 25
Digging around, I see that keywords.h exists on my system in this location:
/System/Volumes/Data/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Perl/5.30/darwin-thread-multi-2level/CORE/keywords.h
Is there a way to tell cpan (or cpanm, or some other installation tool) where to look for these headers? Or, any other approach to get this working would be welcome.
It seems like they removed the keywords.h from the CORE directory (relative to the path given from $Config{archlibexp}) for the system perl on macOS 10.14, see this bug report.
The reason you are not able to install B::Keywords is due to a failed test 11keywords.t see line 24. Some possible solutions:
Install the module without running the tests (sudo cpan -T B::Keywords)
Submit an issue at the GitHub issue tracker so the author of the module can fix the problem.
Install the module with perlbrew instead of using the system perl (I tested this and it worked fine here).
Jython Package installation issue, using pip
Hi, I have installed Jython2.7 configured with pydev in eclipse neon, also configured python 3.6 package
I am able to install packages for python using pip installer?
pip install "packagename"
Below are some of the packages in python/Lib/Site-packages directory
I was able to install all the packages
How do I use pip installer to install packages for jython?
I tried to install Jip package with
jython install setup.py
The binary File got installed in the Jython/Lib/Site-packages folder
However, I am not able to use it.
where and how do I get Jython package binaries like jip?
Also, Please let me know how to search jython packages?
Also, How to make pip install library packages in jython?
Any other configuration like jython home, etc that should be made?
This answer is going to be really generic but I just recently have slogged my way through the setup for jython/jip/pip and here's roughly what I had to do.
Firstly, I'm running Windows 7 64 Bit from behind a proxy (work machine.)
Had to install jython 2.7.0 instead of 2.7.1 because (I think anyway) 2.7.1 requires admin privileges which I don't have on my work PC.
Pip didn't install correctly during the Jython installation and I spent an obscene amount of time trying to get it installed and functioning as I knew it from my cpython days. NOTE: Just because you get pip installed, doesn't mean you can use any package on a python package repo. As of 2.7.0, Jython doesn't have end to end capability to interpret/compile some libraries that rely on certain python wrappers of native OS function calls. I believe 2.7.1 makes solid progress in the direction of supporting all needed native calls but don't quote me on that. For example, I tried to use wxPython to make a simple GUI to test my jython install. Trying to install it from pip kept causing really non-specific error info that took me a lot of time to figure out that the cause was jython simply couldn't compile the wxPython source so beware.
I had to set environment variables 'http_proxy' and 'https_proxy' in the form of http://proxyhosturl:port and https://proxyhosturl:port respectively to get out from behind the proxies without having to invoke pip with the proxy switch every time I called it.
To actually install pip, have a look here. These instructions are for Python and Linux/Unix but the principle is roughly the same. Just use jython -m instead of python -m and ignore the '$' at the start of each command line.
Also be sure to CD to your python_home/bin folder when invoking the ez_install exe.
If that doesn't work (didn't for me), try using get-pip.py script with these instructions https://pip.pypa.io/en/stable/installing/ (remember jython instead of python etc.). Download it, cd to the download location and follow the noted install steps. Worth noting is about half way down the install instructions where it details installing from local archives (source/binary zip or tar.gz archives of pip and setuptools as better described here: https://packaging.python.org/tutorials/installing-packages/#installing-from-local-archives).
The links to the bin archives of pip and setuptools are here:
https://pypi.python.org/pypi/setuptools
https://pypi.python.org/pypi/pip
It may also be worth making sure that your PATH environment variable has the jython/bin path in the variable value. The jython installer should do this but, again, mine did not.
If all goes well, you should be able to invoke pip with the --version switch and if it prints a line with the installed pip version info then you should be good to go
Another quirky issue I had was I could invoke a function of pip one time and any subsequent times I would get a stack trace ending with something along the lines of an object not having a certain property. I fixed that by finding my temp directory by opening a windows explorer instance and typing %TEMP% in the address bar and hitting enter, it should take you to a subdir of your AppData folder and there you may see a folder with the name of the package you were trying to install and the text "_pip" somewhere in the directory name. Delete the directory and try the pip install command again. I had to do this + invoke pip install pip -U to update my install to the latest version. Then pip began behaving correctly in my instance.
pip search numpy (or your library name) will generate a list of results with the same logic it uses to locate your desired package when you call pip install but, again, just because it returns a matching package doesn't mean it will compile when you install it (numpy doesn't work because of the missing java to C native function calls I described earlier.) The trade off is that you can import code artifacts from Java JAR files in your Jython script files and leverage their functionality with relative ease. Between the public Java APIs available and the python packages that work with the jython interpretor, you can (in my experience) come up with a way to accomplish your task. See the following info on JIP, Maven and IDEs.
IDE and jython integration (Eclipse)
- If you are stuck using Eclipse (like me) it actually has pretty decent support for python development. Install the PyDev plugin for Eclipse from Help -> Install Software. Put in this URL https://marketplace.eclipse.org/content/pydev-python-ide-eclipse, hit tab, and select the PyDev plugin and hit 'finish.'
- Setup the jython interpretor info from Windows -> Preferences -> PyDev. Provide the path to your jython.jar file.
- You should now be able to use File -> New PyDev project to create a basic python project and configure it to use your version of Jython and Java.
Brief Overview of Jip and Maven
- jip is a jython package that is invoked very similarly to pip but instead will download JAR files from the Maven Central Repository instead of python packages from pypi.com, for example. See the install instructions described here. Note the install procedure for a global jip install which differ from just pip install jip. https://pypi.python.org/pypi/jip/
- I never got jip to work exactly as I wished because there's not a ton of documentation on it outside of what I already linked. However, if you install a JAR using jip, you have to go to your project in Eclipse and actually add the JARs themselves to your PYTHONPATH in order for import statements and editing to have intellisense and so that you don't get a classnotfound exception at runtime. See following screen shot.
- There is a JIP config file that you can use similar to the pip config ini file but I have yet to find any exhaustive documentation on it's setup.
Note in the above screen shot the first entry in the External libraries entries. By default, pip places installed packages in that directory so to enable eclipse to find them, you need to also ensure that location is entered.
In Conclusion
- I have more to add to this answer and I will do so as soon as possible. In the meantime, see this example project I've loaded into github.
https://github.com/jheidlage1222/jython_java_integration_example
It shows basic config and how to interface with JARs from python code. I used the apache httpcomponents library as an example. Good luck amigo.
I have downloaded the latest Haskell Platform(8.0.1 version) for Windows 7, wxWidgets-3.0.2, set all the needed environment variables. I have successfully installed "wxdirect" using "cabal install", but when I try to install "wxc" it fails. Install logs:
C:\wxWidgets-3.0.2\lib\gcc_dll\mswud\..: getDirectoryContents: does not exist
(The system cannot find the path specified.)
cabal: Leaving directory '.'
Where do I need to get that "gcc_dll\mswud\" folder?
P.S Neither Abriline nor Achelanne works for me for some reason.
P.P.S I tried to install this library following Haskell-wiki instructions, but it didn't work complaining about a ton of dependencies.
UPDATE
I tried installing the wxHaskell using Haskell Platform 2014.2.0.0 with Abriline installer. It stopped on building wxc. Logs:
Building wxc
setup.exe: Maybe.fromJust: Nothing
1] Compiling Main ( wxc-0.92.2.0\dist\setup\setup.hs, wxc-0.92.2.0\dist\setup\Main.o )
Linking .\wxc-0.92.2.0\dist\setup\setup.exe ...
The bitness is correct
Configuring wxc-0.92.2.0...
Configuring wxc to build against wxWidgets 3.0.2
cabal: Leaving directory '.\wxc-0.92.2.0'
UPDATE
Extended logs with "cabal install wxc -v3":
http://rgho.st/7BJcHzJTF
From the log it seems that maybe pkg-config is missing. From the platform's built in msys2 run pacman -S pkg-config and install it, see if it works after that.
I've installed it as follows.
Download wxInstall-Achelanne-64-0.1.zip, unzip, and set this folder as the current directory in a terminal
Type
Set WXWIN=%CD%\wxWidgets
Set WXCFG=gcc_dll\mswu
Set PATH=%CD%;%PATH%
cabal unpack wxdirect
cabal install ./wxdirect-xxx
(where xxx is e.g. 0.92.3).
Find the file wxdirect.exe and put it in the current directory.
Rename the file wxWdigets/include/wx/setup_redirect.h to wxWdigets/include/wx/setup.h
Type
cabal unpack wxc
cabal install ./wxc-xxx
Find the file wxc.dll and put it in the DLLs folder.
Put the folders DLLs and wxWidgets\lib\gcc_dll in your search path.
Now you can install wxcore and wx.
If there a relatively simple way to make go + libxml2 + gokogiri work on windows?
I mean that I may be can install it (but at the moment I can not, stuck with Package libxml-2.0 was not found in the pkg-config search path), but then I need to provide my utilite to other people, who will never be able (or would wish ) to install lall libxml2 dependencies, modify PATH etc on windows...
It work flawless on Ubuntu...
I found this https://github.com/moovweb/gokogiri/issues/49 thats funny with installation of Gimp 2 (what?!), but I still cannot make it run with such error, I guess might be issue with PATH, but all PATH are set
$ go get github.com/moovweb/gokogiri
# github.com/moovweb/gokogiri/help
Documents\go\src\github.com\moovweb\gokogiri\help\help.go:6:25: fatal error: lib
xml/tree.h: No such file or directory
#include <libxml/tree.h>
^
compilation terminated.
# github.com/moovweb/gokogiri/xpath
Documents\go\src\github.com\moovweb\gokogiri\xpath\expression.go:4:26: fatal err
or: libxml/xpath.h: No such file or directory
#include <libxml/xpath.h>
^
compilation terminated.
You are struggling because it is hard to combine packages that were built by different people for different purposes and get your environment set up correctly. I think it is best to use MSYS2, an environment for Windows that provides a consistent set of packages for things like gcc, go, libxml2, and iconv. MSYS2 has a package manager (pacman) that helps you easily install them and keep them updated.
I don't do much programming with Go, but I am familiar with MSYS2 and it seems like I was able to get gokogiri installed using MSYS2. You should open MSYS2's "MinGW-w64 Win64 Shell" from the Start menu (mingw64_shell.bat), and try running these commands:
pacman -S mingw-w64-x86_64-{gcc,go,libxml2,iconv}
export GOROOT=/mingw64/
export GOPATH=/c/Users/David/Documents/goproj/
mkdir -p $GOPATH
go get github.com/moovweb/gokogiri
I think GOPATH should be set to the directory of your project. If you run into an error, it might be because some pacman package is required that I didn't list here.
The string mingw-w64-x86_64-{gcc,go,libxml2,iconv} gets expanded by Bash into the following list of packages:
mingw-w64-x86_64-gcc
mingw-w64-x86_64-go
mingw-w64-x86_64-libxml2
mingw-w64-x86_64-iconv
If you are actually using 32-bit Windows, replace x86_64 with i686 in the instructions above.
If you are curious, the scripts for building those packages are here: https://github.com/Alexpux/MINGW-packages
As a disclaimer, I haven't actually compiled any go programs in MSYS2, so there could be big problems I am unaware of.
Also, one of the main developers of MSYS2 (alexpux) said this in the #msys2 IRC chat on 2015-06-21:
We not build go for a long time.
This package in very WIP state
Also see
https://github.com/Alexpux/MINGW-packages/issues/421
So you might need to fix some issues with the MSYS2 Go package and recompile it yourself to really make this work. But you have the PKGBUILD script that was used to build it, so maybe that will be less hard than what you are trying to do right now, which involves compiling/collecting every dependency of gokogiri.
MSYS2 would make your other installation of go, libxml2, and iconv obsolete. You can delete those things once you get your MSYS2 environment working.
If you are using visual studio and want to add dependency to your project then just install it using NuGet Package Manager it's easiest method.
Install command: Install-Package libxml2
I am trying to include ZMQ sockets in a Go app but both zmq4 and gozmq (the referred ZMQ binding libraries for Go) are giving me problems. I would like to understand why zmq4 specifically isn't importable on my system.
I am running a Windows 8 system and I used the windows installer from the ZMQ website for version 4.0.3. I am primarily concerned about getting zmq4 set up and here is the result of my "go get" query on the github library's location:
> go get github.com/pebbe/zmq4
# github.com/pebbe/zmq4
polling.go:4:17: fatal error: zmq.h: No such file or directory
compilation terminated.
This issue is not alleviated by cloning the Github repository - the error remains the same.
I know the issue has to do with the C library zmq.h that is located in the "include" folder of my ZMQ installation, but whether the dependency is held up by a pathing issue or an external tool issue is a mystery to me.
A similar error has come up in regards to node.js and is the solution I see others referred to, outside of node scripting, but it was unsuccessful in my case.
I've so far included the path to the "include" folder in my PATH environment variable and previously placed zmq.h inside of the zmq4 top-level folder. I don't have much of an arsenal otherwise to understand this problem because I am new to C and C-importing packages in Go
I wanted to do the same thing, but on Windows 7, and here is what I had to do.
Since the Go bindings are using cgo to integrate with zeromq, you need zeromq built with gcc. There are no pre-built binaries, so you'll have to build them yourself, with mingw or similar, but this process is easier than it may sound, and nicely described on the zeromq site.
As #photoionized pointed out, C_INCLUDE_PATH and LIBRARY_PATH need to be set when building the Go bindings.
(In my case, I ran into a problem when compiling libzmq with IN6_ADDR not being defined. The only solution I found was, inspired by this issue, to manually add the line #include <in6addr.h> to the windows.hpp file.)
The Windows installer version of ZeroMQ won't work with zmq4, you need to compile from source with gcc, I recommend using MSYS2.
Install and update MSYS2 following the instructions from
http://sourceforge.net/p/msys2/wiki/MSYS2%20installation/
Start the mingw32_shell.bat or mingw64_shell.bat based on Go arch (32bit or 64bit)
pacman -S mingw-w64-(x86_64|i686)-toolchain make (x86_64 for 64bit, i686 for 32bit)
cd into zeromq src folder (C:\ path starts with /c/ inside the shell)
./configure
make
make install
CGO_CFLAGS=-I/usr/local/include CGO_LDFLAGS=-L/usr/local/lib go get github.com/pebbe/zmq4
Copy the following dlls and put them next to your go program (.exe):
/usr/local/bin/libzmq.dll
/mingw(32|64)/bin/libgcc*.dll
/mingw(32|64)/bin/libwinpthread*.dll
/mingw(32|64)/bin/libstdc++*.dll
Here's updated steps for #user2172816's MSYS2 solution:
Install and update MSYS2 following the instructions from http://sourceforge.net/p/msys2/wiki/MSYS2%20installation/
Start the mingw32_shell.bat or mingw64_shell.bat based on Go arch (32bit or 64bit)
pacman -S mingw-w64-(x86_64|i686)-toolchain make (x86_64 for 64bit, i686 for 32bit)
Add C:\msys64\mingw64\bin to your Path (pkg-config is there)
Restart the msys2 shell to get the new Path
Download and unzip libsodium source: https://github.com/jedisct1/libsodium/releases
cd into libsodium folder (C:\ path starts with /c/ inside the shell)
./configure --build=(x86_64|i686)-w64-mingw32
make
make install
Add /usr/local/lib to PKG_CONFIG_PATH (export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig)
cd into zeromq src folder
./configure --build=(x86_64|i686)-w64-mingw32
Add
#ifdef ZMQ_HAVE_MINGW32
#include <winsock2.h>
#include <windows.h>
#include "netioapi.h"
#endif
To the top of src/tcpaddress.cpp
make
make install
CGO_CFLAGS=-I/usr/local/include CGO_LDFLAGS=-L/usr/local/lib go get github.com/pebbe/zmq4
CGO_CFLAGS=-I/usr/local/include CGO_LDFLAGS=-L/usr/local/lib go build in your project directory
Copy the following dlls and put them next to your go program (.exe):
/usr/local/bin/libzmq.dll
/mingw(32|64)/bin/libgcc*.dll
/mingw(32|64)/bin/libwinpthread-*.dll
/mingw(32|64)/bin/libstdc++*.dll
/usr/local/bin/libsodium-*.dll
maybe? /usr/local/bin/libsodium-*.def
An updated answer using MSYS2.
Install MSYS2 MSYS2 installation guide.
Make sure to choose the correct installation 32bit or 64bit.
Open the appropriate shell MSYS2 MinGW 64-bit or MSYS2 MinGW 32-bit. All further steps assume you are using this shell.
Update packages following instructions at the installation guide.
Install libtool pacman -Sy libtool.
Download zmq source code to a location of your choice.
Navigate to the zmq source folder.
To generate the configure file, run the autogen tool by running ./autogen.sh.
In the probable case that step 8 fails:
Find the file at fault (probably version.sh).
Replace line endings by (replace file by the actual filename).
cp file file.bak
tr -d '\r' <file.bak> file
If this fails you'll have to dive in the code and find the problem.
Run the configure tool ./configure.
In the probable case of failure. Comment out empty else clauses in the configure file.
Add Go to Path: PATH=${PATH}:<go bin directory>.
Install Go Package: CGO_CFLAGS=-I/usr/local/include CGO_LDFLAGS=-L/usr/local/lib go get github.com/pebbe/zmq4
To install ZMQ in windows: Problem in Installing Golang ZMQ for windows - fatal error: czmq.h: No such file or directory
First of all, install the msys64. Download the software from https://www.msys2.org/ and install it on C:\msys64.
Then add C:\msys64\mingw64\bin to PATH environment variable of the windows.
Then run the following commands (in CMD) one by one.
pacman -Su
pacman -S --needed base-devel mingw-w64-x86_64-toolchain
pacman -S base-devel gcc vim cmake
pacman -S mingw-w64-x86_64-libsodium
pacman -S mingw-w64-x86_64-zeromq
Finally, run the Go install command:
go get github.com/pebbe/zmq4
Finished.