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AttributeError: 'NoneType' object has no attribute 'groupdict'

See original GitHub issue

Issue Description

Terraform 0.13.2 OS Ubuntu 20.04 Install via pip

[2020-09-14 18:24:52,501] ERROR in app: Exception on /graph.svg [GET]
Traceback (most recent call last):
  File "/home/pepodev/.local/lib/python3.8/site-packages/blastradius/handlers/dot.py", line 455, in _module
    return m.groupdict()['module']
AttributeError: 'NoneType' object has no attribute 'groupdict'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/pepodev/.local/lib/python3.8/site-packages/flask/app.py", line 2447, in wsgi_app
    response = self.full_dispatch_request()
  File "/home/pepodev/.local/lib/python3.8/site-packages/flask/app.py", line 1952, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/home/pepodev/.local/lib/python3.8/site-packages/flask/app.py", line 1821, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/home/pepodev/.local/lib/python3.8/site-packages/flask/_compat.py", line 39, in reraise
    raise value
  File "/home/pepodev/.local/lib/python3.8/site-packages/flask/app.py", line 1950, in full_dispatch_request
    rv = self.dispatch_request()
  File "/home/pepodev/.local/lib/python3.8/site-packages/flask/app.py", line 1936, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/home/pepodev/.local/lib/python3.8/site-packages/blastradius/server/server.py", line 36, in graph_svg
    dot = DotGraph('', file_contents=run_tf_graph())
  File "/home/pepodev/.local/lib/python3.8/site-packages/blastradius/handlers/dot.py", line 56, in __init__
    self.nodes.append(DotNode(e.target))
  File "/home/pepodev/.local/lib/python3.8/site-packages/blastradius/handlers/dot.py", line 415, in __init__
    self.module         = DotNode._module(self.label) # for module groupings. 'root' or 'module.foo.module.bar'
  File "/home/pepodev/.local/lib/python3.8/site-packages/blastradius/handlers/dot.py", line 457, in _module
    raise Exception("None: ", label)
Exception: ('None: ', '[root] module.allow_nfs (close)')

Issue Analytics

State:
Created 3 years ago
Reactions:24
Comments:12

Top GitHub Comments

9reactions

leriksencommented, Feb 8, 2021

I got it to render a graph by changing the regex as well, in blastradius/handlers/dot.py to be

m = re.match(r'(\[root\]\s+)*(?P<module>\S+)\.(?P<type>\S+)[. ]\S+', label)

Not the [. ] after the capture for the <type> group. The offending label that was crashing for me was

[root] module.kv (close)

This character class handles a . or a \s after a module type

I’ll submit a PR maybe by the weekend

7reactions

PePoDevcommented, Feb 20, 2021

Closed. I found alternative to visual infrastructure from Terraform.

https://github.com/cycloidio/inframap https://github.com/pcasteran/terraform-graph-beautifier

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