Once the update prompt appears, simply click on Download. Once your game is up-to-date, you are ready to start a test session. A test session simply consists of driving solo in the sim with a car and track of your choosing. We definitely recommend starting up a test session rather than a full on race in order to get used to the sim. Jun 22, 2018. May 23, 2009.
$ conda create -n iraf27 python = 2.7 iraf-all pyraf-all stsci After the installation is complete go ahead and activate the “iraf27” environment. This command only needs to be executed one time per terminal session. $ source activate iraf27 To deactivate the “iraf27” environment, close. Aug 20, 2019.
These instructions should install the Anaconda Python distribution and three separate Anaconda environments:
- The Anaconda default (root) environment running Python 3
- An AstroConda environment running Python 3
- An AstroConda/IRAF environment running Python 2.7. This is because IRAF doesn't 'play well' with Python 3.
You can switch environments as needed.
Installation
The following installation instructions is a summary drawn from the Installation Instructions on the Space Telescope Science Institue AstroConda page. Refer to that page for more detailed instructions.
- Download Anaconda Graphical Installer (Python 3.6) from Anaconda Download and follow the instructions on that page to install Anaconda. NOTE: When you get to the Destination Select step, be sure to pause and select the Install for me only tab. This will install a directory under your login directory called
anaconda. This seems to work better than installing system wide. - Open a terminal window and type
which conda. If the installation worked, this should display the path to theconda. - Configure Andaconda to install packages directly from the AstroConda repository.
- Create the Python 3 AstroConda environment. This command will generate some output and then will display the prompt
Proceed ([y]/n)?. Just type y or hit<return>to accept the installation. This is a large installation so it may take a few minutes to finish. - Now install the Python 2.7 package with IRAF by using the command: You will again be prompted to proceed with the installation. Again, it's a large amount of code so it will take a few minutes to install.
Working with environments
Installing these environments allows you to use whichever version of Python you need. For general purpose programming the default root environment is probably best. You don't need to do anything to activate the root environment, but to activate the other environments you issue the command source activate environment_name. For example if you wanted to run ipython in the astroconda environment you would use the following commands.
The which python command isn't necessary, but it was included to verify the path to the current environment is correct. The command ipython --matplotlib runs IPython with a switch that sets-up IPython to do interactive plotting.
The command source deactivate deactivates the environment returns the Terminal window to the default root environment.
Warning: Activating an environment in a particular Terminal window only effects that terminal session and programs spawned from that session. All other Terminal windows continue to use the default environment.
The session below illustrates the effect of source deactivate.
Setup to use IRAF
How To Download Iraf27 Macos
In order to use IRAF you must activate the iraf27 environment. The session below illustrates how to activate iraf27 and set up a new IRAF environment working directory. See the IRAF Tutorial to learn more about using IRAF.
IRAF should now be running properly. However, if after entering the cl command you get the prompt curdir: instead of the usual 'Welcome to IRAF' message see the comment below.
Updating the environments
All of these environments are continually being updated to fix bugs and add features. Each of the environments is updated separately. To update the root environment including the Navigator app use the command conda update anaconda. To update all of the packages in the other two environments use conda update -n environment_name --all, where environment_name is either astroconda or iraf27.
The curdir: error
This error usually occurs when the SHELL environment variable isn't read properly by IRAF. This installation of IRAF requires that SHELL=/bin/bash. The sample session below illustrates the problem and how to fix it.
How To Download Iraf27 Macbook Pro
NOTE: You can abort IRAF at the curdir: prompt by entering <control-C>.