Install Problems on Debian Stretch: pip3: no such file or directory exists

[Colleen Kellam]

I have spent the last three days trying to get Dedalus installed on my machine without success.  I am very new to Linux, so I'm sure my problems are ignorance/user error, but I would very much appreciate some help.  I've tried installation using the script and manually, but nothing has worked.  I've deleted the files and started over a few times, so this question is specifically regarding the install script installation method.  

When trying to use the install script, I encounter the following error:

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Installing FFTW.

pip installing cython.

********************************************

        FAILURE REPORT:

********************************************

rm -rf .libs _libs

rm -f *.o

rm -f *.lo

make[1]: Leaving directory '/home/seventyxseven/dedalus/src/fftw-3.3.4/tools'

Making clean in m4

make[1]: Entering directory '/home/seventyxseven/dedalus/src/fftw-3.3.4/m4'

rm -rf .libs _libs

rm -f *.lo

make[1]: Leaving directory '/home/seventyxseven/dedalus/src/fftw-3.3.4/m4'

install.sh: line 718: /home/seventyxseven/dedalus/bin/pip3: No such file or directory

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I've read through several other threads on this group and saw the explanation for this error is that SSL headers must be installed, but I did run the apt-get script for the required packages.  After executing the apt-get install line for the required packages, everything installed fine except for libzmq-dev, which gave me the following error:

---

Package libzmq-dev is not available, but is referred to by another package.

This may mean that the package is missing, has been obsoleted, or

is only available from another source

---

I've made sure my system is updated/updated, but I still get the error.  I  found libzmq3-dev and installed that package without a problem, but still can't get libzmq-dev, nor do I know if that's the problem with the installation.  

Install log is attached.  I'm so sorry if this question has been asked/answered but I greatly appreciate any help/assistance.

Colleen

[Jeffrey S. Oishi]

Hi Collen,

Thanks for the detailed report! I was able to track this down to a problem with the SSL headers in Debian 9 and the (old) version of python we were using. I've bumped the python version to 3.6.3, the most recent one, and this seems to fix the problem on a fresh Debian 9 install. 

Also, note libzmq-dev is no longer required, so you can ignore the fact that you can't install that package.

Please try the most recent version of the install script, 

https://bitbucket.org/dedalus-project/dedalus/raw/140cf05bd327843831f9cfa552f8029dae732b20/docs/install.sh

and let me know if you have any further problems.

thanks,

Jeff

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[Colleen Kellam]

Jeff,

You're my hero - the new script works perfectly.  Thank you so much for getting back to me so quickly!

Colleen