1

What

I already have Python 3.4.3 installed but I want to leave that undisturbed and instead use the instructions to install another copy of Python 3 (being Python 3.6).

I'm following the second part of the instructions here : https://askubuntu.com/a/680828/257420 . Specifically I am downloading a version of Python and building it in the /opt directory.

When I execute the 'make' everything seems to work fine but having run the make in /opt/Python-3.6.4 I'm expecting to find a /opt/Python-3.6.4/bin/ and there is no such directory.

So?

Given that I don't have a bin I presume the make has failed ? Or should I be looking somewhere else for the bin because times have changed since the answer I'm following was written ?

Environment

I am attempting to build Python 3.6.4 (https://www.python.org/ftp/python/3.6.4/Python-3.6.4.tar.xz).

This is my env

glaucon@polo ~ $ inxi -S
System:    Host: polo Kernel: 3.13.0-37-generic x86_64 (64 bit) Console: tty 4 Distro: Linux Mint 17.1 Rebecca

EDIT: I have just completed a

find / -name "python3"

while on as root and there was no sign of (for instance) python3.6 .


EDIT2 Here's the output from 'make' on subsequent invocations

polo Python-3.6.4 # make
running build
running build_ext
INFO: Can't locate Tcl/Tk libs and/or headers

Python build finished successfully!
The necessary bits to build these optional modules were not found:
_bz2                  _lzma                 _tkinter
To find the necessary bits, look in setup.py in detect_modules() for the module's name.

The following modules found by detect_modules() in setup.py, have been
built by the Makefile instead, as configured by the Setup files:
atexit                pwd                   time
running build_scripts
copying and adjusting /opt/Python-3.6.4/Tools/scripts/pydoc3 -> build/scripts-3.6
copying and adjusting /opt/Python-3.6.4/Tools/scripts/idle3 -> build/scripts-3.6
copying and adjusting /opt/Python-3.6.4/Tools/scripts/2to3 -> build/scripts-3.6
copying and adjusting /opt/Python-3.6.4/Tools/scripts/pyvenv -> build/scripts-3.6
changing mode of build/scripts-3.6/pydoc3 from 644 to 755
changing mode of build/scripts-3.6/idle3 from 644 to 755
changing mode of build/scripts-3.6/2to3 from 644 to 755
changing mode of build/scripts-3.6/pyvenv from 644 to 755
renaming build/scripts-3.6/pydoc3 to build/scripts-3.6/pydoc3.6
renaming build/scripts-3.6/idle3 to build/scripts-3.6/idle3.6
renaming build/scripts-3.6/2to3 to build/scripts-3.6/2to3-3.6
renaming build/scripts-3.6/pyvenv to build/scripts-3.6/pyvenv-3.6

Unfortunately the output from the first invocation of 'make' is lost and it was significantly different . Once I'm happy that my first attempt at 'make' was completely useless I will delete the /opt/Python3.6.4 directory and repeat the 'make' while capturing the output.

EDIT3 Following information from @unixpower I did a 'make clean' followed by a 'make' and the output from that command is visbile at : https://pastebin.com/Bq04MXA0 .

Unfortunately there still isn't an /opt/Python-3.6.4/bin . Just to confuse matters however I'm almost certain that the 'make' output finished somewhere differently the first time I used it than this last time !

Any comments would be welcome.

  • Can you show the output of the make command? – nixpower Jan 8 '18 at 0:38
  • @nixpower : Thanks for your response. I can, and will, add the 'make' output but unfortunately when I run 'make' now the output is significantly different to that when I first ran. When I first ran it there was a lot of output now there's very little as you can see in my 'EDIT2' above. – glaucon Jan 8 '18 at 0:45
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    Did you run the make install command? No files will be copied to /opt/ until your run that command. – Kesara Jan 8 '18 at 2:02
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    BTW you don't have to run make on /opt/Python-3.6.4, you just have untar all tarball any directory and use ./configure --prefix=<your directory> to tell what directory you need to install files to. – Kesara Jan 8 '18 at 2:05
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    @glaucon Since you've found the solution -- that you must run make install (or sudo make install, depending on where you're installing) to actually install software that you have compiled by running ./configure and make -- I recommend posting it as an answer. – Eliah Kagan Jan 8 '18 at 2:47
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Run make install to install files to /opt/Python-3.6.4/.

Files don't have to be compiled on /opt/Python-3.6.4/ to install it there. When running ./configure step, you can provide the target directory as the prefix. Example: ./configure --prefix=<target_directory>

More information: https://askubuntu.com/a/191391/116563

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