fatal error: 'pyconfig.h' file not found

[prateektiwari7]

Hi Team,

I am facing issue while building the nano blockchain.

Steps: What I did?

1. Clone the nano git and start the building process by using the command $sudo sh bootstrap_boost.sh
2. I already installed the boots for mac Error I am facing while building as

`In file included from libs/python/src/list.cpp:5:
In file included from ./boost/python/list.hpp:8:
In file included from ./boost/python/detail/prefix.hpp:13:
./boost/python/detail/wrap_python.hpp:50:11: fatal error: 'pyconfig.h' file not found
include <pyconfig.h>
^
1 error generated.
In file included from libs/python/src/long.cpp:5:
In file included from ./boost/python/long.hpp:8:
In file included from ./boost/python/detail/prefix.hpp:13:
./boost/python/detail/wrap_python.hpp:50:11: fatal error: 'pyconfig.h' file not found
include <pyconfig.h>
^
1 error generated.
In file included from libs/python/src/dict.cpp:4:
In file included from ./boost/python/dict.hpp:8:
In file included from ./boost/python/detail/prefix.hpp:13:
./boost/python/detail/wrap_python.hpp:50:11: fatal error: 'pyconfig.h' file not found
include <pyconfig.h>
^
1 error generated.
In file included from libs/python/src/tuple.cpp:5:
In file included from ./boost/python/tuple.hpp:8:
In file included from ./boost/python/detail/prefix.hpp:13:
./boost/python/detail/wrap_python.hpp:50:11: fatal error: 'pyconfig.h' file not found
include <pyconfig.h>
^
1 error generated.
In file included from libs/python/src/str.cpp:4:
In file included from ./boost/python/str.hpp:8:
In file included from ./boost/python/detail/prefix.hpp:13:
./boost/python/detail/wrap_python.hpp:50:11: fatal error: 'pyconfig.h' file not found
include <pyconfig.h>
^
1 error generated.
In file included from libs/python/src/slice.cpp:1:
In file included from ./boost/python/slice.hpp:9:
In file included from ./boost/python/detail/prefix.hpp:13:
./boost/python/detail/wrap_python.hpp:50:11: fatal error: 'pyconfig.h' file not found
include <pyconfig.h>
^
1 error generated.
In file included from libs/python/src/converter/from_python.cpp:6:
In file included from ./boost/python/converter/from_python.hpp:8:
In file included from ./boost/python/detail/prefix.hpp:13:
./boost/python/detail/wrap_python.hpp:50:11: fatal error: 'pyconfig.h' file not found

include <pyconfig.h>
^
1 error generated.
In file included from libs/python/src/converter/registry.cpp:5:
In file included from ./boost/python/converter/registry.hpp:7:
In file included from ./boost/python/type_id.hpp:8:
In file included from ./boost/python/detail/prefix.hpp:13:
./boost/python/detail/wrap_python.hpp:50:11: fatal error: 'pyconfig.h' file not found
include <pyconfig.h>
^
`

I checked this command in my terminal to solve this issue as $export CPLUS_INCLUDE_PATH="$CPLUS_INCLUDE_PATH:/usr/include/python2.7/"

I also added the file path in my bash_profile
export CPLUS_INCLUDE_PATH="$CPLUS_INCLUDE_PATH:/usr/include/python2.7/

And python 2.7 lib path to check whether file 'pyconfig.h' is present and it is present.
/usr/include/python2.7
fileobject.h pycapsule.h unicodeobject.h floatobject.h pyconfig.h warnings.h frameobject.h pyctype.h

Current python version
$ python --version Python 3.7.0

Please help me to solve this error thank you

[prateektiwari7]

Hi @zhyatt

Can you please help me to find out the solution of above Query

[prateektiwari7]

Hi @argakiig

I think you didn't answer that, dont make this in the loop. I check the issue there in #1519 which make me again redirect to #1505.

Please solve the issue atleast at one position

[zhyatt]

@prateektiwari7 There is an issue with your python setup preventing boost from identifying the correct location. I would double-check your path includes proper location (you indicate two different versions of python in your issue), source the file in your terminal and try again.

[clemahieu]

This looks related to boost python and/or your python environment. I did a search and other people have had this issue on other projects. One place is here. boostorg/python#187

[prateektiwari7]

Hi @zhyatt

Yes. I also tried for 3.7 with reference as export CPLUS_INCLUDE_PATH="$CPLUS_INCLUDE_PATH:path to python 3.7"

same issue :)

[clemahieu]

Since this is a boost/python related issue you'll get better assistance with them since we've never run in to this problem internally.

[zhyatt]

Closing out as external issue with https://github.com/boostorg/boost/issues and python

[prateektiwari7]

Hi @zhyatt

I solved this issue by finding my pyconfig.h from the command
$python3.7-config --includes --libs

Than export the python lib in ~/.bashrc_profile
nano ~/.bashrc_profile

export
CPLUS_INCLUDE_PATH="$CPLUS_INCLUDE_PATH:/Users/yudiz/anaconda3/include/python3.7m"

After this source ~/.bashrc_profile

After this the Error solved :)

[rajhlinux]

Tried the answer from: prateektiwari7

Did not work for me on FreeBSD 13.1:

/usr/local/include/boost/python/detail/wrap_python.hpp:57:11: fatal error: 'pyconfig.h' file not found
# include <pyconfig.h>

[dsiganos]

You do not need to build python support into the boost library, we are not using python features.
Provide this when building nano:

./bootstrap.sh --without-libraries=python

for more details on how to build boost, see:
https://github.com/dsiganos/nano-workspace/blob/main/boost/Makefile

For an automatic way to build nano:
https://github.com/dsiganos/nano-workspace