I've been spending hours on this. I'm new to Python and can't see what the solution may be.
I have Python 3.4 and want to work with .docx, which requires lxml.
The workflow I've done so far is: I go to the Python lxml package installer page, but it's quite confusing to know which version I need. I tried with several of them that contained the 34 numbers, both .exe and .tar. I also tried pip install lxml3.4.4 and pip install lxml 3.4.4. None of them worked either.
This is what the command prompt says when I did pip install lxml (it automatically grabs the lxml 3.4.4 I've downloaded and then prints what you can see in the screenshot):
What am I doing wrong and what can I do to repair it? And/or what exact version of lxml do I need to install from where? I am really discouraged that this is so difficult. Thanks
As said at the lxml homepage, it happened to you:
If you fail to build lxml on your MS Windows system from the signed and tested sources that we release, consider using the binary builds from PyPI or the unofficial Windows binaries that Christoph Gohlke generously provides.
So you have to download the right wheel file from Unofficial Windows Binaries for Python Extension Packages.
Step 1: Download appropriate version
Depending on your machine you have to download the wheel file lxml‑3.4.4‑cp34‑none‑win32.whl or lxml‑3.4.4‑cp34‑none‑win_amd64.whl, because you want the version for Python3.4 (that's the 34 in cp34).
Step 2: Open cmd and navigate to the download folder
I have chosen to open the cmd in administrator mode. But this is probably not necessary for you.
Step 3: Install wheel file with pip
Now you have to install the unofficial wheel file with pip. Maybe you can do pip install pip --upgrade before you install the wheel file. But this is probably also not necessary for you. To do the installation, just type pip install <downloaded_file>.
Or as cgohlke mentioned in his comment to your question: If you can't do pip install in cmd directly, this is what you can try: C:\Python34\python.exe -m pip install <downloaded_file>. You have to edit the path if Python3.4 is installed elsewhere, of course.
Don't panic. If you try to install the wrong downloaded file (e. g. win32 instead of amd64), it shouldn't break anything. An error message should occur: <package name> is not a supported wheel on this platform.
Related
Okay, so, I'm running Python 3.4.3 with pip 9.0.1, with the setuptools and wheel.
I'm running this inside JetBrains PyCharm Professional 2017.2.3.
The issue I'm having is trying to install the twitter api packages from this tutorial (ya I'm a n00b) http://wiki.openhatch.org/Twitter
I'm struggling with installing the 4 dependencies mentioned in the first part of the tutorial (httplib2, simplejson, oauth2 and python-twitter)
Honestly, I'm just getting back into programming and this is a project I'd like to complete.
So, I need help with:
Installing pip, and how to use it, and where (python shell or command line or)
the dev.twitter.com website (and where to find what I need from there)
Any help is massively appreciated and sorry if I sound really n00by, but do correct me where I'm using incorrect terms etc because that's how I learn I guess :)
If you haven't got pip installed, find your python installation file.Execute it and choose 'Change Python Installation'. Now choose 'pip' to install and 'add python.exe to path'. Wait for it to finish. Now run windows command line and type:
pip install package_name
Sometimes you may experience that a package isn't available on pip or doesn't work.There are 2 common (not always working) ways to install a package without making pip download the file:
1) A package may be available as a .whl file for download.Download it.Now find it and copy its name .Open a command line in dictionary where it is located and type
pip install **now paste the filename and add .whl**'
2)A package is available as a zip file.Packages are often packed into a zip file.Download the file and extract it.Open a command line in it's directory.You may see setup.py file.Run
python setup.py install
When finished installing pip and adding python to path,you can run:
pip install httplib2 simplejson oauth2 python-twitter
Done.
Once you have pip installed, open the command prompt and just type pip install name_of_the_extension.
In this case, pip install httplib2 will install this package.
I believe you have pip installed on your computer, so it shouldn't be a problem to install the 4 packages you need.
I'm having a hard time setting up python packages. EasyInstall from SetupTools is supposed to help that, but they don't have an executable for Python 2.6.
For instance to install Mechanize, I'm just supposed to put the Mechanize folder in C:\Python24\Lib\site-packages according to INSTALL.txt, but runnning the tests does not work. Can someone help shed some light on this? Thanks!
The accepted answer is outdated. So first, pip is preferred over easy_install, (Why use pip over easy_install?). Then follow these steps to install pip on Windows, it's quite easy.
Install setuptools:
curl https://bootstrap.pypa.io/ez_setup.py | python
Install pip:
curl https://bootstrap.pypa.io/get-pip.py | python
Optionally, you can add the path to your environment so that you can use pip anywhere. It's somewhere like C:\Python33\Scripts.
Newer versions of Python for Windows come with the pip package manager. (source)
pip is already installed if you're using Python 2 >=2.7.9 or Python 3 >=3.4
Use that to install packages:
cd C:\Python\Scripts\
pip.exe install <package-name>
So in your case it'd be:
pip.exe install mechanize
This is a good tutorial on how to get easy_install on windows. The short answer: add C:\Python26\Scripts (or whatever python you have installed) to your PATH.
You don't need the executable for setuptools.
You can download the source code, unpack it, traverse to the downloaded directory and run python setup.py install in the command prompt
Starting with Python 2.7, pip is included by default. Simply download your desired package via
python -m pip install [package-name]
As I wrote elsewhere
Packaging in Python is dire. The root cause is that the language ships without a package manager.
Fortunately, there is one package manager for Python, called Pip. Pip is inspired by Ruby's Gem, but lacks some features. Ironically, Pip itself is complicated to install. Installation on the popular 64-bit Windows demands building and installing two packages from source. This is a big ask for anyone new to programming.
So the right thing to do is to install pip. However if you can't be bothered, Christoph Gohlke provides binaries for popular Python packages for all Windows platforms http://www.lfd.uci.edu/~gohlke/pythonlibs/
In fact, building some Python packages requires a C compiler (eg. mingw32) and library headers for the dependencies. This can be a nightmare on Windows, so remember the name Christoph Gohlke.
I had problems in installing packages on Windows. Found the solution. It works in Windows7+. Mainly anything with Windows Powershell should be able to make it work. This can help you get started with it.
Firstly, you'll need to add python installation to your PATH variable. This should help.
You need to download the package in zip format that you are trying to install and unzip it. If it is some odd zip format use 7Zip and it should be extracted.
Navigate to the directory extracted with setup.py using Windows Powershell (Use link for it if you have problems)
Run the command python setup.py install
That worked for me when nothing else was making any sense. I use Python 2.7 but the documentation suggests that same would work for Python 3.x also.
Upgrade the pip via command prompt ( Python Directory )
D:\Python 3.7.2>python -m pip install --upgrade pip
Now you can install the required Module
D:\Python 3.7.2>python -m pip install <<yourModuleName>>
pip is the package installer for python, update it first, then download what you need
python -m pip install --upgrade pip
Then:
python -m pip install <package_name>
You can also just download and run ez_setup.py, though the SetupTools documentation no longer suggests this. Worked fine for me as recently as 2 weeks ago.
PS D:\simcut> C:\Python27\Scripts\pip.exe install networkx
Collecting networkx
c:\python27\lib\site-packages\pip\_vendor\requests\packages\urllib3\util\ssl_.py:318: SNIMissingWarning: An HTTPS reques
t has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may caus
e the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer ve
rsion of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#snimissi
ngwarning.
SNIMissingWarning
c:\python27\lib\site-packages\pip\_vendor\requests\packages\urllib3\util\ssl_.py:122: InsecurePlatformWarning: A true SS
LContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL con
nections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.
readthedocs.io/en/latest/security.html#insecureplatformwarning.
InsecurePlatformWarning
Downloading networkx-1.11-py2.py3-none-any.whl (1.3MB)
100% |################################| 1.3MB 664kB/s
Collecting decorator>=3.4.0 (from networkx)
Downloading decorator-4.0.11-py2.py3-none-any.whl
Installing collected packages: decorator, networkx
Successfully installed decorator-4.0.11 networkx-1.11
c:\python27\lib\site-packages\pip\_vendor\requests\packages\urllib3\util\ssl_.py:122: InsecurePlatformWarning: A true SSLContext object i
s not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade
to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#insecureplat
formwarning.
InsecurePlatformWarning
Or just put the directory to your pip executable in your system path.
As mentioned by Blauhirn after 2.7 pip is preinstalled. If it is not working for you it might need to be added to path.
However if you run Windows 10 you no longer have to open a terminal to install a module. The same goes for opening Python as well.
You can type directly into the search menu pip install mechanize, select command and it will install:
If anything goes wrong however it may close before you can read the error but still it's a useful shortcut.
I have been trying to install paramiko module on windows without success. I have been getting errors related to Visual C++ compiler missing. Is it possible to install paramiko without having to go through compile process.
Based on the method from this question this is what I would suggest (assuming you already have >=python-2.7.9 installed, if not, upgrade, 2.7.9 comes with pip, pre 2.7.9 doesn't):
Get the appropriate pycrypto whl file (based on python version and win32/win_amd64). I've found some available here (can't vouch for the site as I don't use python on windows much).
Run pip install pycrypto-stuff.whl (in a command prompt window in the directory where you've saved the pycrypto whl file).
Run pip install paramiko (in a command prompt, but can be in w/e folder you like).
That should do the trick. In general a simple pip install package_name would work, but pycrypto does not provide a wheel file (binary package), therefore you have to build it. By the sound of it you don't have Visual C++ installed (or not the right version, it only works for one, I don't recall which), pycrypto needs an extension package built to use the system crypto libraries, which is why the source package isn't working.
I was able to get it working by installing the following packages using pip.
pip install bcrypt cryptography pynacl paramiko
These were the packages my Linux install used as prerequisites, so they should work on windows as well.
I think I'm too stupid for installing LXML Lib on my System.
Please can anyone help me with instructions for stupid people?
I found a lot of instruction, but they did not help me much.
I looked at LXML-Homepage
For installation I need pip 1.4.1? I downloaded it... But, how can I install it?
Unzip pip-1.4.1.tar.gz
Then I opened the setup.py with my Python Shell.
Run the modul:
Traceback (most recent call last):
File "C:\................\dist\pip-1.4.1\setup.py", line 5, in <module>
from setuptools import setup, find_packages
ImportError: No module named 'setuptools'
Ok.. now I thought I need setuptools...
Downloaded setuptools-1.4.1-py2.py3-none-any.whl
Unziped it.. run the easy_install.py with my python shell
SystemExit: error: No urls, filenames, or requirements specified
Same error if started in windows command console.
What should I do?
If you on Windows, why not to use binary packages with normal installers?
You can find them on this page: http://www.lfd.uci.edu/~gohlke/pythonlibs/
You can also use anaconda. Once you have it installed (http://continuum.io/downloads) you can just run conda install lxml to install lxml. It's also very useful for packages like numpy and scipy, which can sometimes be a pain to install on Windows.
These instructions are for Windows7 or Windows8 with Python3.3 specifically as the original poster requested. However, they should work for various versions as the releases of python and other respective prerequisites change/evolve:
Install Python3.3:
Download the last release of Python3.3 (currently 3.3.5) from the downloads page HERE
Direct link for Win32 MSI installer -> HERE
Direct link for Win64 MSI installer -> HERE
Simply run the MSI to install python. It will register itself in the registry, and appear in Add/REmove Programs.
NOTE: my instructions that follow assume that you choose to install python to the default path of C:\python33\ when asked during the Python Installation Wizard
Add the C:\python33\ and C:\python33\scripts folders to the system path by adding those directories to the PATH environment variable from the Control Panel > System > Advanced System Settings link (Advanced Tab) > Environmental Variables (Button).
Install OpenSSL:
Download Win32 OpenSSL page from HERE for your version of Windows and PC architecture
Download Visual C++ 2008 redistributables for your version of Windows and PC architecture
Download OpenSSL for your version of Windows and architecture (the regular version, not the light one)
Add the c:\openssl-win32\bin (or similar) directory to your PATH, the same way you added C:\python33 and C:\python33\scripts above.
Install Setuptools (get-pip.py should install Setuptools for you), but, just in case...
Download ez_setup.py HERE and save it in C:\python33\scripts
Run C:\python33\scripts> python ez_setup.py
Install PIP
Download get-pip.py from HERE and save it in C:\python33\scripts
Run C:\python33\scripts> python get-pip.py
Install LXML
Download LXML 3.3.3 from HERE for your version of Windows and PC architecture
Run the EXE file
Download lxml based on your version dependencies from here,
http://www.lfd.uci.edu/~gohlke/pythonlibs/djcobkfp/lxml-3.4.4-cp27-none-win32.whl # replace lxml version based on your dependencies..
http://www.lfd.uci.edu/~gohlke/pythonlibs/
and open your command prompt open lcoation Downloads or where file Downloaded in cmd..
that install using,
pip install lxml-3.4.4-cp34-none-win_amd64.whl # this is eg name may vary based on your python or lxml version.
I have Python 2.7, and I have distutils installed.
I downloaded the latest version of Scipy for win 32.
For the life of me, I do not understand how to install it.
From the directions on the site, it states:
If you already have Python installed, the easiest way to install Numpy
and Scipy is to download and install the binary distribution from
Download.
I have followed the above directions and downloaded this.
I cannot figure what to do now!
How do I finish getting scipy installed?
It looks like you've downloaded the source distribution, which you would normally install by doing:
python setup.py install
However, without the proper C compiler environment and other libraries, it will probably fail. I'm guessing you really wanted to download the Windows binaries .
You have to drill a little further down in the sourceforge site to find it.
try downloading the windows binary ...
http://sourceforge.net/projects/scipy/files/scipy/0.11.0/scipy-0.11.0-win32-superpack-python2.7.exe/download
You'll be well off installing setuptools. Makes installing almost anything python-related a breeze!
e.g.
easy_install scipy
There's another one called pip.
easy_install pip
pip install scipy
just open windows command prompt and go to the directory you have installed Python. e.g
c:\python34>
Once there, just type python -m pip install scipy and press enter