[ptxdist] ptxdist-2012.03.00 python2.6, hashlib.py, flup.py install fails ImportError: No module named _sha256

[ptxdist] ptxdist-2012.03.00 python2.6, hashlib.py, flup.py install fails ImportError: No module named _sha256

[jdwilson]

Hello ptxdist devel group:

I'm new to this group and somewhat new to ptxdist, so I hope this is the 
right list to post this issue.  

I have successfully built a target image that includes python2.6 and 
lighttpd which is part of ptxdist-2012.03.00. The intent was to use flup.py 
to provide fastcgi, wsgi capability. (This works in my dev env, under Ubuntu 
12.04 LTS, python2.7.x).

The issue below shows up when I enable the extra python module flup in 
ptxdist menuconfig, under python extra modules.

My diagnostics may not be 100% correct here, but it appears to me that the 
openssl is not available when being built for the target. (Note the 
references to sysroot-host/lib/python2.6 to where hashlib.py is located).

If the openssl was installed, there would be a ~/ssl directory either under 
/usr/lib/ssl (default per openssl.make) or some other specified file system 
(e.g., /usr/local/lib/ssl)  There is no ~/ssl directory on the target at 
this time.

1) How does one ensure ptxdist builds and installs openssl and then ensure 
that python will use the openssl module?

2) For reference, I found the patch for flup.in, python.in here:
https://bitbucket.org/bwalle/ptxdist/commits/6e48293f380f6c115bd433f8519e7f9
6e8f0f66f

I applied this patch by copying the respective .in, .make files to my 
platform ~/rules directory.

This still did not solve the problem. I'm hoping someone from this group may 
be able to help get around this hashlib.py issue.

Also, would it be advisable to update to ptxdist-2012.07.00 which includes 
the fix for flup?  Would also like to update to python2.7 as well, but not 
sure the build tool supports this yet.

I also tested the target python install by importing hashlib and testing 
md5(), new("md5") both work.  So not sure why this build below does not wor.

Any help or guidance would be much appreciated.
The log is below.
Regards,
JD

_________________________________________________________________________
Packaged contents of /home/jdwilson/embed/phytec/bsp13.2.2/platform-phyFLEX-
i.MX6/packages/python.tmp/opkg into 
/home/jdwilson/embed/phytec/bsp13.2.2/platform-phyFLEX-
i.MX6/packages/python_2.6.6_armel.ipk
done.
finished target python.targetinstall

----------------
target: flup.get
----------------

finished target flup.get

--------------------
target: flup.extract
--------------------

extract: pkg_src=bsp13.2.2/src/flup-1.0.2.tar.gz
extract: pkg_extract_dir=bsp13.2.2/platform-phyFLEX-i.MX6/build-target/flup-
1.0.2
ptxdist: error: series file for 'ptxdist-2012.03.0/patches/flup-1.0.2' is 
missing
pkg_patch_dir:     'ptxdist-2012.03.0/patches/flup-1.0.2'
pkg_patch_series:  '<none>'
pkg_patch_autogen: 'ptxdist-2012.03.0/patches/flup-1.0.2/autogen.sh'

patchin: autogen: running '/usr/local/lib/ptxdist-2012.03.0/patches/flup-
1.0.2/autogen.sh'
patchin: autogen: done

patchin: fixup:
patchin: fixup: done

finished target flup.extract

--------------------
target: flup.prepare
--------------------

prepare stage disabled.
finished target flup.prepare

--------------------
target: flup.compile
--------------------

finished target flup.compile

--------------------
target: flup.install
--------------------

/home/jdwilson/swdev/embed/phytec/bsp13.2.2/platform-phyFLEX-i.MX6/build-
target/flup-1.0.2/ez_setup.py:59: DeprecationWarning: the md5 module is 
deprecated; use hashlib instead
  except ImportError: from md5 import md5
Traceback (most recent call last):
  File "setup.py", line 2, in <module>
    from ez_setup import use_setuptools
  File "/home/jdwilson/swdev/embed/phytec/bsp13.2.2/platform-phyFLEX-
i.MX6/build-target/flup-1.0.2/ez_setup.py", line 59, in <module>
    except ImportError: from md5 import md5
  File "/home/jdwilson/embed/phytec/bsp13.2.2/platform-phyFLEX-
i.MX6/sysroot-host/lib/python2.6/md5.py", line 10, in <module>
    from hashlib import md5
  File "/home/jdwilson/embed/phytec/bsp13.2.2/platform-phyFLEX-
i.MX6/sysroot-host/lib/python2.6/hashlib.py", line 138, in <module>
    sha224 = __get_builtin_constructor('sha224')
  File "/home/jdwilson/embed/phytec/bsp13.2.2/platform-phyFLEX-
i.MX6/sysroot-host/lib/python2.6/hashlib.py", line 66, in 
__get_builtin_constructor
    import _sha256
ImportError: No module named _sha256
make: *** [/home/jdwilson/embed/phytec/bsp13.2.2/platform-phyFLEX-
i.MX6/state/flup.install] Error 1




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Re: [ptxdist] ptxdist-2012.03.00 python2.6, hashlib.py, flup.py install fails ImportError: No module named _sha256

[Juergen Beisert]

Hi,

On Tuesday 11 March 2014 23:39:42 jdwilson wrote:
> [...]
> I have successfully built a target image that includes python2.6 and
> lighttpd which is part of ptxdist-2012.03.00. The intent was to use flup.py
> to provide fastcgi, wsgi capability. (This works in my dev env, under
> Ubuntu 12.04 LTS, python2.7.x).

You should try PTXdist-2014.03.0 (coming soon) for reference. Maybe your issue 
is already solved. If it works, you can upgrade your project or backporting 
the required changes to your older PTXdist/BSP.

> [...]
> 1) How does one ensure ptxdist builds and installs openssl and then ensure
> that python will use the openssl module?

The "select <other package nam>" in the menuconfig tells PTXdist to build this 
dependency first.

Regards
Juergen

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Re: [ptxdist] ptxdist-2012.03.00 python2.6, hashlib.py, flup.py install fails ImportError: No module named _sha256

[jdwilson]

Juergen,

Thank you for the feedback.

I have figured out what the issue is.  The default options to build openssl 
for the *build-host* need to be set so that at least no-ssl2 is defined, and 
possibly "shared".  I think the latter is needed because python may be 
looking for the dynamic lib.  The default openssl build only produces the 
static libs.

Background: In a sandbox rootfs under Linux 12.04LTS I installed openssl and 
found that both _hashlib and _ssl were not included in the libcrypt.a or 
ssl.a modules.  After I ran through ./configure's options, I added "shared" 
and "no-ssl2" to the ./configure command line, (as well as specifying my 
sandbox env using --prefix).  Disabling ssl2 resolves the issue/bug with 
ssl2 (SSLv2_method), which can be addressed later.  

Having hashlib and ssl available will keep the "from hashlib import md5" 
from failing when flup.py is installed (see original posting).

Right now I'm trying to work through the ptxdist guru doc to understand how 
to properly modify the host-openssl.in,.make so that I can define the 
options to build the host-openssl correctly.  

More specifically, I can't find documentation as to how to enable 
"PTXCONF_HOST_OPENSSL" in menuconfig (other than manually editing the 
ptxconfig file) and where does HOST_OPENSSL_PKG get defined?  (Running grep 
through ptxdist/rules only shows the host-openssl.make file).

Any help would be much appreciated.
Regards,
jd





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Re: [ptxdist] ptxdist-2012.03.00 python2.6, hashlib.py, flup.py install fails ImportError: No module named _sha256

[Juergen Beisert]

Hi,

On Thursday 13 March 2014 23:45:30 jdwilson wrote:
> I have figured out what the issue is.  The default options to build openssl
> for the *build-host* need to be set so that at least no-ssl2 is defined,
> and possibly "shared".  I think the latter is needed because python may be
> looking for the dynamic lib.  The default openssl build only produces the
> static libs.
>
> Background: In a sandbox rootfs under Linux 12.04LTS I installed openssl
> and found that both _hashlib and _ssl were not included in the libcrypt.a
> or ssl.a modules.  After I ran through ./configure's options, I added
> "shared" and "no-ssl2" to the ./configure command line, (as well as
> specifying my sandbox env using --prefix).  Disabling ssl2 resolves the
> issue/bug with ssl2 (SSLv2_method), which can be addressed later.

If you need to add the "--shared" and the "--no-ssl2" config parameter, add it 
to the HOST_OPENSSL_CONF_OPT variable in "rules/host-openssl.make".

> Having hashlib and ssl available will keep the "from hashlib import md5"
> from failing when flup.py is installed (see original posting).
>
> Right now I'm trying to work through the ptxdist guru doc to understand how
> to properly modify the host-openssl.in,.make so that I can define the
> options to build the host-openssl correctly.
>
> More specifically, I can't find documentation as to how to enable
> "PTXCONF_HOST_OPENSSL" in menuconfig (other than manually editing the
> ptxconfig file)

Add it to the *.in package menu file which depends on HOST_OPENSSL

config MY_PACKAGE_WHICH_DEPENDS_ON_HOST_OPENSSL
	tristate
	prompt "my package which depends on host openssl"
	select HOST_OPENSSL <-----------
        help
	  friesel, frasel,....

Regards,
Juergen

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