Jump to content
UltiMaker Community of 3D Printing Experts

"Failed to install python2.7"


Recommended Posts

Posted · "Failed to install python2.7"

Hi guys,

I wanted to try the new Cura release on my Mac but Python keeps me from making any progress...

I downloaded the newest Cura and opened it. It says Cura 12.10 needs Python 2.7 to run. After I click OK it start runing the Python installation wizard which is pretty nice. Everything works up, even up to the point where the wizards says installation complete/ succesful/ something like that with a big green V mark showing in the screen.

The problem succenly shows up when I close the window. I get a new dialog bow showing "Failed to install python 2.7" with no further reference...

It's not Cura related but I can't run Cura without Python. Any suggestions?



  • Link to post
    Share on other sites

    • 2 weeks later...
    Posted · "Failed to install python2.7"

    Hi guys (and daid in particular),

    I managed to solve my own problem here... It's Python 32/ 64 bit related.

    The Cura installer just tries to install the 64 bit version of Python which appears to be too new for my pretty old machine (iMac running on Mac 10.5.8 - Leopard). After Googling some detail of the error message this showed up somewhere on the internet. When I had a look at the Python installer box it also showed 10.6+ for the OS while mine is just 10.5'ish (didn't know that up to 15 minutes ago, sorry for being a nOOb ;-)).

    Ideas for the Cura installer:

    Perhaps the installer can check on 32/ 64 bit machines and install the right Python version with it. Another solution would be to get some messages on the screen to help people getting Python installed correctly.

    The rest of the programs that Cura needs to operate installed fine so I have a working Cura now on my Mac! Just going through the first setup wizard etcetera now :-).



  • Link to post
    Share on other sites

    • 2 weeks later...
    Posted · "Failed to install python2.7"

    Hi guys,

    for those of you who are on Mac OS 10.5.8 (Leopard): this appears to be a 32-bit OS. I personally didn't know that tbh... The Cura 12.10 installation files don't work on a 32-bit machine.

    I had 10.5.8 running and gave Cura a try (without knowing this was going to be a problem in the process). It resulted in more than one error but the first one that shows up is the Python installation error.I think one might be able to get Cura running on the 32-bit Leopard but I didn't even move on trying to install the bits and end up with an unsupported program.

    Snow Leopard (10.6) is Apple's first 64-bit OS and costs 20 Euro's so I got myself a little upgrade :-). The installation takes some time but went smoothly. My iMac is now running 10.6 + Cura without problems. I'm thinking about upgrading to 10.8 Mountain Lion now but before I can do that my iMac needs more memory (2Gb or more is required).

    More of an Apple OS-topic now, sorry for that :oops:


  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now

    • Our picks

      • Here it is. The new UltiMaker S7
        The UltiMaker S7 is built on the success of the UltiMaker S5 and its design decisions were heavily based on feedback from customers.
        So what’s new?
        The obvious change is the S7’s height. It now includes an integrated Air Manager. This filters the exhaust air of every print and also improves build temperature stability. To further enclose the build chamber the S7 only has one magnetically latched door.
        The build stack has also been completely redesigned. A PEI-coated flexible steel build plate makes a big difference to productivity. Not only do you not need tools to pop a printed part off. But we also don’t recommend using or adhesion structures for UltiMaker materials (except PC, because...it’s PC). Along with that, 4 pins and 25 magnets make it easy to replace the flex plate perfectly – even with one hand.
        The re-engineered print head has an inductive sensor which reduces noise when probing the build plate. This effectively makes it much harder to not achieve a perfect first layer, improving overall print success. We also reversed the front fan direction (fewer plastic hairs, less maintenance), made the print core door magnets stronger, and add a sensor that helps avoid flooding.

        The UltiMaker S7 also includes quality of life improvements:
        Reliable bed tilt compensation (no more thumbscrews) 2.4 and 5 GHz Wi-Fi A 1080p camera (mounted higher for a better view) Compatibility with 280+ Marketplace materials Compatibility with S5 project files (no reslicing needed) And a whole lot more  
        Curious to see the S7 in action?
        We’re hosting a free tech demo on February 7.
        It will be live and you can ask any questions to our CTO, Miguel Calvo.
        Register here for the Webinar
          • Like
        • 13 replies
      • UltiMaker Cura 5.3.0-Alpha 🎄 Tree Support Spotlight 🎄
        Are you a fan of tree support, but dislike the removal process and the amount of filament it uses? Then we would like to invite you to try this special release of UltiMaker Cura. Brought to you by our special community contributor @thomasrahm
        We generated a special version of Cura 5.2 called 5.3.0 Alpha + Xmas. The only changes we introduced compared to UltiMaker Cura 5.2.1 are those which are needed for the new supports. So keep in mind, this is not a sneak peek for Cura 5.3 (there are some really cool new features coming up) but a spotlight release highlighting this new version of tree supports.  
          • Like
        • 17 replies
      • New here? Get ahead with a free onboarding course
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 14 replies
    • Create New...