sage 9.0 build failed : Error building package python3-3.7.3.p1

[souvik kapri]

Hi,

I have a problem building sage from source files. It says that :

Package 'python3' is currently not installed

No legacy uninstaller found for 'python3'; nothing to do

Configuring python3-3.7.3.p1

configure: WARNING: unrecognized options: --disable-maintainer-mode, --disable-dependency-tracking

checking build system type... x86_64-pc-linux-gnu

checking host system type... x86_64-pc-linux-gnu

checking for python3.7... no

checking for python3... on

I have Ubuntu 16.04 and I have python 3.7.6 installed. I have tried changing the symbolic links to other python versions like 3.5 and 3.6 but this error persists.

I have attached the corresponding log file,

Thanks in advance

[Dima Pasechnik]

At this point Sage is building its own python.

(we are working on its ability to use system's python, but it is not there yet)

So there's nothing wrong here - except that it fails.

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[Dima Pasechnik]

The problem can be seen at the end of the python log:

ModuleNotFoundError: No module named 'readline'
readline module failed to import
socket module imported OK
Error: One or more modules failed to import.


Please install system package libreadline-dev
(i.e., run "sudo apt-get install libreadline-dev")
This seems to be missing in our installation manual, will be fixed.

then run

make ncurses-clean readline-clean
./configure
make

[souvik kapri]

I did run the above commands, but the error still persists:

ModuleNotFoundError: No module named 'readline'

readline module failed to import

socket module imported OK

Error: One or more modules failed to import.

[Dima Pasechnik]

post the latest config.log please

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[souvik kapri]

The config file.

On Thursday, March 5, 2020 at 2:29:07 PM UTC+5:30, Dima Pasechnik wrote:

post the latest config.log please

On Thu, Mar 5, 2020 at 8:50 AM souvik kapri <souvikk...@gmail.com> wrote:
>
> I did run the above commands, but the error still persists:
>
> ModuleNotFoundError: No module named 'readline'
> readline module failed to import
> socket module imported OK
> Error: One or more modules failed to import.
>
>
>
> On Thursday, March 5, 2020 at 11:10:51 AM UTC+5:30, souvik kapri wrote:
>>
>> Hi,
>> I have a problem building sage from source files. It says that :
>>
>> Package 'python3' is currently not installed
>> No legacy uninstaller found for 'python3'; nothing to do
>> Configuring python3-3.7.3.p1
>> configure: WARNING: unrecognized options: --disable-maintainer-mode, --disable-dependency-tracking
>> checking build system type... x86_64-pc-linux-gnu
>> checking host system type... x86_64-pc-linux-gnu
>> checking for python3.7... no
>> checking for python3... on
>>
>> I have Ubuntu 16.04 and I have python 3.7.6 installed. I have tried changing the symbolic links to other python versions like 3.5 and 3.6 but this error persists.
>> I have attached the corresponding log file,
>> Thanks in advance
>
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[Dima Pasechnik]

please post the output of
sudo apt-get install libncurses-dev
and
sudo apt-get install libreadline-dev

it appears you have not installed these packages.

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[souvik kapri]

The output I received  is : 

$ sudo apt-get install libncurses-dev

Reading package lists... Done

Building dependency tree       

Reading state information... Done

Note, selecting 'libncurses5-dev' instead of 'libncurses-dev'

The following packages were automatically installed and are no longer required:

  libpython-all-dev libpython-dev libpython2.7-dev libreadline5

  linux-image-4.15.0-66-generic linux-modules-4.15.0-66-generic

  linux-modules-extra-4.15.0-66-generic python-all python-all-dev python-dev

  python-pkg-resources python-setuptools python-wheel python2.7-dev

Use 'sudo apt autoremove' to remove them.

Suggested packages:

  ncurses-doc

The following NEW packages will be installed:

  libncurses5-dev

0 upgraded, 1 newly installed, 0 to remove and 2 not upgraded.

Need to get 175 kB of archives.

After this operation, 1,060 kB of additional disk space will be used.

Get:1 http://in.archive.ubuntu.com/ubuntu xenial/main amd64 libncurses5-dev amd64 6.0+20160213-1ubuntu1 [175 kB]

Fetched 175 kB in 0s (372 kB/s)         

Selecting previously unselected package libncurses5-dev:amd64.

(Reading database ... 295937 files and directories currently installed.)

Preparing to unpack .../libncurses5-dev_6.0+20160213-1ubuntu1_amd64.deb ...

Unpacking libncurses5-dev:amd64 (6.0+20160213-1ubuntu1) ...

Processing triggers for man-db (2.7.5-1) ...

Setting up libncurses5-dev:amd64 (6.0+20160213-1ubuntu1) ...

$ sudo apt-get install libreadline-dev 

Reading package lists... Done

Building dependency tree       

Reading state information... Done

libreadline-dev is already the newest version (6.3-8ubuntu2).

The following packages were automatically installed and are no longer required:

  libpython-all-dev libpython-dev libpython2.7-dev libreadline5

  linux-image-4.15.0-66-generic linux-modules-4.15.0-66-generic

  linux-modules-extra-4.15.0-66-generic python-all python-all-dev python-dev

  python-pkg-resources python-setuptools python-wheel python2.7-dev

Use 'sudo apt autoremove' to remove them.

0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.

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[Dima Pasechnik]

Thank you. Now you should be all set.
I forgot that on Ubuntu installation of
libreadline-dev does not trigger the installation of libncurses-dev,
my fault, sorry.
Please try building now. Specifically, run

make ncurses-clean
./configure
make

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[souvik kapri]

Thank You sir, 

I was able to to build sage.

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