1. It is simple to install Python library on windows, we can do it manually without using pip or by using pip. After downloading you can manually install these packages or you can use pip to download and install these packages automatically. How to Install Python library on Windows. Downloading & Installing Package Manually without pip.
2. To use the Earth Engine Python API you'll need to install the client library and its dependencies on your computer and then set up authentication credentials. Installing the client library Ubuntu Linux & Mac OS X installation. After the initial set up, the installation flows for Mac OS X and Ubuntu are nearly identical.
3. Mar 29, 2019 Hold down the ⌥ Option key. This key is in the lower-left corner of the Mac keyboard. Holding it down will prompt the Library folder to appear in the Go drop-down menu.

1. Run Python On Mac
2. Python For Mac Download
3. Mac No Python Library File
4. Python Standard Library
5. Python Library List

The Python keyring library provides an easy way to access the system keyring service from python. It can be used in any application that needs safe password storage. These recommended keyring backends are supported: macOS Keychain; Freedesktop Secret Service supports many DE including GNOME (requires secretstorage) KDE4 & KDE5 KWallet (requires. Jan 22, 2017  Installing RFExplorer library. RF Explorer Python library can be easily installed with PIP. Linux / Mac / Unix. Open a terminal. Sudo pip3 install RFExplorer Use either pip or pip3 if you are using a different pip install for each Python version. Open a Command Prompt as Administrator. Pip install RFExplorer Prerequisites.

Bob Savage <bobsavage@mac.com>

Python on a Macintosh running Mac OS X is in principle very similar to Python onany other Unix platform, but there are a number of additional features such asthe IDE and the Package Manager that are worth pointing out.

4.1. Getting and Installing MacPython¶

Mac OS X 10.8 comes with Python 2.7 pre-installed by Apple. If you wish, youare invited to install the most recent version of Python 3 from the Pythonwebsite (https://www.python.org). A current “universal binary” build of Python,which runs natively on the Mac’s new Intel and legacy PPC CPU’s, is availablethere.

What you get after installing is a number of things:

• A Python3.8 folder in your Applications folder. In hereyou find IDLE, the development environment that is a standard part of officialPython distributions; PythonLauncher, which handles double-clicking Pythonscripts from the Finder; and the “Build Applet” tool, which allows you topackage Python scripts as standalone applications on your system.

• A framework /Library/Frameworks/Python.framework, which includes thePython executable and libraries. The installer adds this location to your shellpath. To uninstall MacPython, you can simply remove these three things. Asymlink to the Python executable is placed in /usr/local/bin/.

The Apple-provided build of Python is installed in/System/Library/Frameworks/Python.framework and /usr/bin/python,respectively. You should never modify or delete these, as they areApple-controlled and are used by Apple- or third-party software. Remember thatif you choose to install a newer Python version from python.org, you will havetwo different but functional Python installations on your computer, so it willbe important that your paths and usages are consistent with what you want to do.

IDLE includes a help menu that allows you to access Python documentation. If youare completely new to Python you should start reading the tutorial introductionin that document.

If you are familiar with Python on other Unix platforms you should read thesection on running Python scripts from the Unix shell.

4.1.1. How to run a Python script¶

Your best way to get started with Python on Mac OS X is through the IDLEintegrated development environment, see section The IDE and use the Help menuwhen the IDE is running.

If you want to run Python scripts from the Terminal window command line or fromthe Finder you first need an editor to create your script. Mac OS X comes with anumber of standard Unix command line editors, vim andemacs among them. If you want a more Mac-like editor,BBEdit or TextWrangler from Bare Bones Software (seehttp://www.barebones.com/products/bbedit/index.html) are good choices, as isTextMate (see https://macromates.com/). Other editors includeGvim (http://macvim-dev.github.io/macvim/) and Aquamacs(http://aquamacs.org/).

Run Python On Mac

To run your script from the Terminal window you must make sure that/usr/local/bin is in your shell search path.

To run your script from the Finder you have two options:

• Drag it to PythonLauncher

• Select PythonLauncher as the default application to open yourscript (or any .py script) through the finder Info window and double-click it.PythonLauncher has various preferences to control how your script islaunched. Option-dragging allows you to change these for one invocation, or useits Preferences menu to change things globally.

4.1.2. Running scripts with a GUI¶

With older versions of Python, there is one Mac OS X quirk that you need to beaware of: programs that talk to the Aqua window manager (in other words,anything that has a GUI) need to be run in a special way. Use pythonwinstead of python to start such scripts.

With Python 3.8, you can use either python or pythonw.

4.1.3. Configuration¶

Python on OS X honors all standard Unix environment variables such asPYTHONPATH, but setting these variables for programs started from theFinder is non-standard as the Finder does not read your .profile or.cshrc at startup. You need to create a file~/.MacOSX/environment.plist. See Apple’s Technical Document QA1067 fordetails.

For more information on installation Python packages in MacPython, see sectionInstalling Additional Python Packages.

4.2. The IDE¶

MacPython ships with the standard IDLE development environment. A goodintroduction to using IDLE can be found athttp://www.hashcollision.org/hkn/python/idle_intro/index.html.

4.3. Installing Additional Python Packages¶

There are several methods to install additional Python packages:

• Packages can be installed via the standard Python distutils mode (pythonsetup.pyinstall).

• Many packages can also be installed via the setuptools extensionor pip wrapper, see https://pip.pypa.io/.

4.4. GUI Programming on the Mac¶

There are several options for building GUI applications on the Mac with Python.

PyObjC is a Python binding to Apple’s Objective-C/Cocoa framework, which isthe foundation of most modern Mac development. Information on PyObjC isavailable from https://pypi.org/project/pyobjc/.

The standard Python GUI toolkit is tkinter, based on the cross-platformTk toolkit (https://www.tcl.tk). An Aqua-native version of Tk is bundled with OSX by Apple, and the latest version can be downloaded and installed fromhttps://www.activestate.com; it can also be built from source.

wxPython is another popular cross-platform GUI toolkit that runs natively onMac OS X. Packages and documentation are available from https://www.wxpython.org.

PyQt is another popular cross-platform GUI toolkit that runs natively on MacOS X. More information can be found athttps://riverbankcomputing.com/software/pyqt/intro.

4.5. Distributing Python Applications on the Mac¶

The “Build Applet” tool that is placed in the MacPython 3.6 folder is fine forpackaging small Python scripts on your own machine to run as a standard Macapplication. This tool, however, is not robust enough to distribute Pythonapplications to other users.

The standard tool for deploying standalone Python applications on the Mac ispy2app. More information on installing and using py2app can be foundat http://undefined.org/python/#py2app.

4.6. Other Resources¶

Python For Mac Download

The MacPython mailing list is an excellent support resource for Python users anddevelopers on the Mac:

Another useful resource is the MacPython wiki:

Mac No Python Library File

This document provides a quick overview of some macOS specific features inthe Python distribution.

macOS specific arguments to configure

• --enable-framework[=DIR]

  If this argument is specified the build will create a Python.framework ratherthan a traditional Unix install. See the sectionBuilding and using a framework-based Python on macOS for moreinformation on frameworks.

  If the optional directory argument is specified the framework is installedinto that directory. This can be used to install a python framework intoyour home directory:

  This will install the framework itself in /Users/ronald/Library/Frameworks,the applications in a subdirectory of /Users/ronald/Applications and thecommand-line tools in /Users/ronald/bin.

• --with-framework-name=NAME

  Specify the name for the python framework, defaults to Python. This optionis only valid when --enable-framework is specified.

• --enable-universalsdk[=PATH]

  Create a universal binary build of Python. This can be used with bothregular and framework builds.

  The optional argument specifies which macOS SDK should be used to perform thebuild. In most cases on current systems, you do not need to specify PATH oryou can just use /; the default MacOSX SDK for the active Xcode or CommandLine Tools developer directory will be used. See the macOS xcrun man pagefor more information. Current versions of macOS and Xcode no longer installsystem header files in their traditional locations, like /usr/include and/System/Library/Frameworks; instead they are found within a MacOSX SDK.The Apple-supplied build tools handle this transparently and currentversions of Python now handle this as well. So it is no longer necessary,and since macOS 10.14, no longer possible to force the installation of systemheaders with xcode-select.

• --with-universal-archs=VALUE

  Specify the kind of universal binary that should be created. This option isonly valid when --enable-universalsdk is specified. The default is32-bit if building with a SDK that supports PPC, otherwise defaultsto intel. Note that intel means a universal build of both 32-bitand 64-bit binaries and that may not be what you want; for example,as of macOS 10.15 Catalina, 32-bit execution is no longer supported bythe operating system. Thus it is best to either explicitly specifyvalues for --with-universal-archs:

  --enable-universalsdk --with-universal-archs=intel-64

  or avoid using either.

Building and using a universal binary of Python on macOS

1. What is a universal binary

A universal binary build of Python contains object code for more than oneCPU architecture. A universal macOS executable file or library combines thearchitecture-specific code into one file and can therefore run at nativespeed on all supported architectures. Universal files were introduced inmacOS 10.4 to add support for Intel-based Macs to the existing PowerPC (PPC)machines. In macOS 10.5 support was extended to 64-bit Intel and 64-bit PPCarchitectures. It is possible to build Python with various combinationsof architectures depending on the build tools and macOS version in use.Note that PPC support was removed in macOS 10.7 and 32-bit Intel supportwas removed in macOS 10.15. So currently as of macOS 10.15, macOS onlysupports one execution architecture, 64-bit Intel (x86_64).

2. How do I build a universal binary

You can enable universal binaries by specifying the '--enable-universalsdk'flag to configure:

This flag can be used with a framework build of python, but also with a classicunix build. Universal builds were first supported with macOS 10.4 with Xcode 2.1and the 10.4u SDK. Starting with Xcode 3 and macOS 10.5, more configurations areavailable.

In general, universal builds depend on specific features provided by theApple-supplied compilers and other build tools included in Apple's Xcodedevelopment tools. You should install Xcode or the command line toolscomponent appropriate for the macOS release you are running on. See thePython Developer's Guide (https://devguide.python.org/setup/)for more information.

2.1 Flavors of universal binaries

It is possible to build a number of flavors of the universal binary build,the default is a 32-bit only binary (i386 and ppc) in build environments thatsupport ppc (10.4 with Xcode 2, 10.5 and 10.6 with Xcode 3) or anIntel-32/-64-bit binary (i386 and X86_64) in build environments that do notsupport ppc (Xcode 4 on 10.6 and later systems). The flavor can be specifiedusing the configure option --with-universal-archs=VALUE. The followingvalues are available:

• intel: i386, x86_64
• intel-32: i386
• intel-64: x86_64
• 32-bit: ppc, i386
• 3-way: i386, x86_64, ppc
• 64-bit: ppc64, x86_64
• all: ppc, ppc64, i386, x86_64

To build a universal binary that includes a 64-bit architecture, you must buildon a system running macOS 10.5 or later. The all and 64-bit flavors canonly be built with a 10.5 SDK because ppc64 support was only included withmacOS 10.5. Although legacy ppc support was included with Xcode 3 on macOS10.6, it was removed in Xcode 4, versions of which were released on macOS 10.6and which is the standard for macOS 10.7. To summarize, thefollowing combinations of SDKs and universal-archs flavors are available:

• 10.4u SDK with Xcode 2 supports 32-bit only
• 10.5 SDK with Xcode 3.1.x supports all flavors
• 10.6 SDK with Xcode 3.2.x supports intel, intel-32,intel-64, 3-way, and 32-bit
• 10.6 SDK with Xcode 4 supports intel, intel-32, and intel-64
• 10.7 through 10.14 SDKs support intel, intel-32, and intel-64
• 10.15 and later SDKs support intel-64 only

The makefile for a framework build will also install python3.x-32binaries when the universal architecture includes at least one 32-bitarchitecture (that is, for all flavors but 64-bit and intel-64).

Running a specific architecture

You can run code using a specific architecture using the arch command:

Or to explicitly run in 32-bit mode, regardless of the machine hardware:

Using arch is not a perfect solution as the selected architecture willnot automatically carry through to subprocesses launched by programs and testsunder that Python. If you want to ensure that Python interpreters launched insubprocesses also run in 32-bit-mode if the main interpreter does, usea python3.x-32 binary and use the value of sys.executable as thesubprocessPopen executable value.

Building and using a framework-based Python on macOS

1. Why would I want a framework Python instead of a normal static Python?

The main reason is because you want to create GUI programs in Python. With theexception of X11/XDarwin-based GUI toolkits all GUI programs need to be runfrom a macOS application bundle ('.app').

While it is technically possible to create a .app without using frameworks youwill have to do the work yourself if you really want this.

A second reason for using frameworks is that they put Python-related items inonly two places: '/Library/Framework/Python.framework' and'/Applications/Python <VERSION>' where <VERSION> can be e.g. '3.8','2.7', etc. This simplifies matters for users installingPython from a binary distribution if they want to get rid of it again. Moreover,due to the way frameworks work, usera without admin privileges can install abinary distribution in their home directory without recompilation.

2. How does a framework Python differ from a normal static Python?

In everyday use there is no difference, except that things are stored ina different place. If you look in /Library/Frameworks/Python.frameworkyou will see lots of relative symlinks, see the Apple documentation fordetails. If you are used to a normal unix Python file layout go down toVersions/Current and you will see the familiar bin and lib directories.

3. Do I need extra packages?

Yes, probably. If you want Tkinter support you need to get the macOS AquaTkdistribution, this is installed by default on macOS 10.4 or later. Beaware, though, that the Cocoa-based AquaTk's supplied starting with macOS10.6 have proven to be unstable. If possible, you should considerinstalling a newer version before building on macOS 10.6 or later, such asthe ActiveTcl 8.6. See http://www.python.org/download/mac/tcltk/. If youare building with an SDK, ensure that the newer Tcl and Tk frameworks areseen in the SDK's Library/Frameworks directory; you may need tomanually create symlinks to their installed location, /Library/Frameworks.If you want wxPython you need to get that.If you want Cocoa you need to get PyObjC.

4. How do I build a framework Python?

This directory contains a Makefile that will create a couple of python-relatedapplications (full-blown macOS .app applications, that is) in'/Applications/Python <VERSION>', and a hidden helper application Python.appinside the Python.framework, and unix tools including 'python' into/usr/local/bin. In addition it has a target 'installmacsubtree' that installsthe relevant portions of the Mac subtree into the Python.framework.

It is normally invoked indirectly through the main Makefile, as the last stepin the sequence

1. ./configure --enable-framework
2. make
3. make install

This sequence will put the framework in /Library/Framework/Python.framework,the applications in /Applications/Python <VERSION> and the unix tools in/usr/local/bin.

Installing in another place, for instance $HOME/Library/Frameworks if youhave no admin privileges on your machine, is possible. This can be accomplishedby configuring with --enable-framework=$HOME/Library/Frameworks.The other two directories will then also be installed in your home directory,at $HOME/Applications/Python-<VERSION> and $HOME/bin.

If you want to install some part, but not all, read the main Makefile. Theframeworkinstall is composed of a couple of sub-targets that install theframework itself, the Mac subtree, the applications and the unix tools.

There is an extra target frameworkinstallextras that is not part of thenormal frameworkinstall which installs the Tools directory into'/Applications/Python <VERSION>', this is useful for binarydistributions.

What do all these programs do?

'IDLE.app' is an integrated development environment for Python: editor,debugger, etc.

'Python Launcher.app' is a helper application that will handle things when youdouble-click a .py, .pyc or .pyw file. For the first two it creates a Terminalwindow and runs the scripts with the normal command-line Python. For thelatter it runs the script in the Python.app interpreter so the script can doGUI-things. Keep the Option key depressed while dragging or double-clickinga script to set runtime options. These options can be set persistentlythrough Python Launcher's preferences dialog.

The program pythonx.x runs python scripts from the command line.Previously, various compatibility aliases were also installed, includingpythonwx.x which in early releases of Python on macOS was required to runGUI programs. As of 3.4.0, the pythonwx.x aliases are no longer installed.

How do I create a binary distribution?

Python Standard Library

Download and unpack the source release from http://www.python.org/download/.Go to the directory Mac/BuildScript. There you will find a scriptbuild-installer.py that does all the work. This will download and builda number of 3rd-party libaries, configures and builds a framework Python,installs it, creates the installer package files and then packs this in aDMG image. The script also builds an HTML copy of the current Pythondocumentation set for this release for inclusion in the framework. Theinstaller package will create links to the documentation for use by IDLE,pydoc, shell users, and Finder user.

The script will build a universal binary so you'll therefore have to run thisscript on macOS 10.4 or later and with Xcode 2.1 or later installed.However, the Python build process itself has several build dependencies notavailable out of the box with macOS 10.4 so you may have to installadditional software beyond what is provided with Xcode 2.It should be possible to use SDKs and/or olderversions of Xcode to build installers that are compatible with older systemson a newer system but this may not be completely foolproof so the resultingexecutables, shared libraries, and .so bundles should be carefullyexamined and tested on all supported systems for proper dynamic linkingdependencies. It is safest to build the distribution on a system running theminimum macOS version supported.

All of this is normally done completely isolated in /tmp/_py, so it does notuse your normal build directory nor does it install into /.

Because of the way the script locates the files it needs you have to run itfrom within the BuildScript directory. The script accepts a number ofcommand-line arguments, run it with --help for more information.

Configure warnings

The configure script sometimes emits warnings like the one below:

This almost always means you are trying to build a universal binary forPython and have libraries in /usr/local that don't contain the requiredarchitectures. Temporarily move /usr/local aside to finish the build.

Uninstalling a framework install, including the binary installer

Uninstalling a framework can be done by manually removing all bits that got installed.That's true for both installations from source and installations using the binary installer.macOS does not provide a central uninstaller.

The main bit of a framework install is the framework itself, installed in/Library/Frameworks/Python.framework. This can contain multiple versionsof Python, if you want to remove just one version you have to remove theversion-specific subdirectory: /Library/Frameworks/Python.framework/Versions/X.Y.If you do that, ensure that /Library/Frameworks/Python.framework/Versions/Currentis a symlink that points to an installed version of Python.

A framework install also installs some applications in /Applications/Python X.Y,

And lastly a framework installation installs files in /usr/local/bin, all ofthem symbolic links to files in /Library/Frameworks/Python.framework/Versions/X.Y/bin.

Python Library List

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