Fix for AttributeError: 'NoneType' object has no attribute pos in

[shyamsubbu]

line 81 function emit_depend will throw AttributeError error when m is None
and we reference m.pos.ref

[coveralls]

Coverage increased (+1.7%) to 37.379% when pulling 8a8214c on shyamsubbu:patch-1 into 8f5f1a7 on mbj4668:master.

[coveralls]

Coverage increased (+1.7%) to 37.379% when pulling 8a8214c on shyamsubbu:patch-1 into 8f5f1a7 on mbj4668:master.

[shyamsubbu]

@mbj4668
I faced this issue while compiling a package where m is None and the line 81 function emit_depend will throw AttributeError error for m.pos.ref.
So i added a check for m is None . Hope this is ok .

[mbj4668]

I don't think that this is the right fix. Note that you can pass --depend-ignore-module ModName to ignore some modules.
However, the code shouldn't crash; in this case it should probably give an error instead.
Do you have an example fot how to reproduce this?

[shyamsubbu]

Code is crashing as shown below. Like you mentioned even though i did not use "--depend-ignore-module "
pyang should not crash.

Traceback (most recent call last):
File "/auto/nso/tools/py3/bin/pyang", line 4, in
import('pkg_resources').run_script('pyang==1.7.8', 'pyang')
File "/auto/nso/tools/py3/lib/python3.6/site-packages/pkg_resources/init.py", line 658, in run_script
self.require(requires)[0].run_script(script_name, ns)
File "/auto/nso/tools/py3/lib/python3.6/site-packages/pkg_resources/init.py", line 1438, in run_script
exec(code, namespace, namespace)
File "/auto/nso/tools/py3/lib/python3.6/site-packages/pyang-1.7.8-py3.6.egg/EGG-INFO/scripts/pyang", line 489, in
run()
File "/auto/nso/tools/py3/lib/python3.6/site-packages/pyang-1.7.8-py3.6.egg/EGG-INFO/scripts/pyang", line 458, in run
emit_obj.emit(ctx, modules, fd)
File "/auto/nso/tools/py3/lib/python3.6/site-packages/pyang-1.7.8-py3.6.egg/pyang/plugins/depend.py", line 63, in emit
emit_depend(ctx, modules, fd)
File "/auto/nso/tools/py3/lib/python3.6/site-packages/pyang-1.7.8-py3.6.egg/pyang/plugins/depend.py", line 80, in emit_depend
filename = m.pos.ref
AttributeError: 'NoneType' object has no attribute 'pos'
make[1]: *** [../load-dir/ipaddress-allocator-oper.fxs] Error 1