Install python in 64-bit Windows 7 and configure the numpy and matplotlib libraries and numpymatplotlib
I,PythonInstallation
1. Download python2.7 ,:Http://www.python.org/Select the system version. I chose python2.7.6.
- Python-2.7.6rc1.amd64.msi
2. Click Install directly. you can install it in the python27 file under the d directory (this is your installation path, or you can select the installation path ).
3. Set the environment variables. In the "my computer" attribute, choose Advanced Settings> environment variable Settings> path, and add "; D: \ python27.
II,NumpyInstallation
In the win64 python2.7 environmentCmdWhen you use the "pip install numpy" command to install numpy, the system prompts "not an internal or external command.
There are two reasons:
- No pip environment path set
- Pip Not Installed
The complete installation steps are as follows:
1. Install pip
After installing the Python2.7 installation package, the scripts folder will not be generated many times in the Python2.7 installation directory (at least I re-installed it n times, which is unacceptable), resulting in no
Use pip.
It may be because of a problem with my installation package. We suggest you change the installation package first. If the problem persists after the installation package is changed, let's take a look at how I solved the problem, for reference only.
- Go to the official website to downloadEz_setup.pyFile.
- Go to the path where the ez_setup.py file is located in cmd and run the "Python ez_setup.py" command. After the command is complete, the scripts folder is generated.
- Switch to the scriptsfolder, install pips, and enter the command "easy_install.exe pip ".
- Then configure the environment variables. Add to path... \ Python27 \ ScriptsThis path.
2. Download numpy
InHttp://www.lfd.uci.edu /~ Gohlke/pythonlibs/# numpy Select the corresponding system version to download:
- Numpy route 1.13.1 + mkl route cp27 route cp27m route win_amd64.whl
Because the file suffix is ". whl", you cannot directly double-click to install it. Therefore, we need to install wheel first.
3. Install wheel
Enter the "pip install wheel" command in cmd to complete the installation.
4. Install numpy
C: \ Users \ Administrator> pip install D: \ python27 \ numpy-1.9.2 + mkl-cp27-none-win_amd64.whl
If an error occurs during installation:
"UnicodeDecodeError: 'ascii 'codec can't decode byte 0xc4 in position 33: ordinal not in range (128 )"
Refer to"Solve Python UnicodeDecodeError".
5. verify whether the installation is successful
>>> From numpy import *
If no error is reported, the installation is successful.
III,MatplotlibInstallation
1. Download matplotlib fromHttp://www.lfd.uci.edu /~ Gohlke/pythonlibs/# matplotlibDownload the corresponding version.
- Matplotlib-1.5.3-cp27-cp27m-win_amd64.whl
2. Install matplotlib
C: \ Users \ Administrator> pip install D: \ python27 \ matplotlib-1.5.3-cp27-cp27m-win_amd64.whl
3. verify whether the installation is successful
1 from pylab import *2 3 n = 84 X,Y = np.mgrid[0:n,0:n]5 quiver(X,Y), show()
The execution result is as follows:
By now, all installation is complete.