`None` link title assert hit

[equaeghe]

There is the following in the code:

html2text/html2text/__init__.py

Line 781 in 24aac86

assert link.attrs["title"] is not None

Of course someone managed to produce html with links of the form <a title href="example.org">…</a> that trigger this assert. I think better than having the assert would be to replace

html2text/html2text/__init__.py

Line 780 in 24aac86

if "title" in link.attrs:

with

link_attrs_title = link.attrs.get("title", None)
if link_attrs_title is not None:

N.B.: The same type of pattern fixable in the way can be found on three other occasions:

• html2text/html2text/__init__.py

  Line 502 in 24aac86

  assert attrs["src"] is not None

• html2text/html2text/__init__.py

  Line 514 in 24aac86

  assert attrs["width"] is not None

• html2text/html2text/__init__.py

  Line 517 in 24aac86

  assert attrs["height"] is not None

[Alir3z4]

Thanks for pointing these out.

Would like to know what @jdufresne thinks on this as well.

@equaeghe A pull request that fixes these is welcome.

[equaeghe]

@equaeghe A pull request that fixes these is welcome.

OK, see #327. It seems there were some problems detected by the CI, but it wasn't really clear to me what the issue was. I fixed some style issues that were found, getting one extra test to be successful. But for the others, I'll need guidance. (Are they even all due to my changes?)

[equaeghe]

Did you have time to look at my pull request. I again hit an issue fixed by it. Namely, someone managed to put a naked alt in <img … alt …>, which causes alt=None, which causes an exception, because alt is assumed to be a str or bytes.

[jdufresne]

Would like to know what @jdufresne thinks on this as well.

The general idea makes sense to me once the CI issues are hammered out.

[equaeghe]

The general idea makes sense to me once the CI issues are hammered out.

I'll have a look at them again. I think I now understand better how the CI works and where to find the errors.

[equaeghe]

I'll have a look at them again. I think I now understand better how the CI works and where to find the errors.

I managed to eliminate all but one of the issues:

https://travis-ci.org/github/Alir3z4/html2text/jobs/726262620

I need assistance with this one @Alir3z4 @jdufresne .

[equaeghe]

I tried again, but am still hitting an issue I can't seem to solve:

https://travis-ci.org/github/Alir3z4/html2text/jobs/737085613

I really need assistance with this one @Alir3z4 @jdufresne .

[Alir3z4]

Sorry, I missed this

The error is coming from mypy

html2text/__init__.py:540: error: Incompatible types in assignment (expression has type "Optional[str]", variable has type "str")
Found 1 error in 1 file (checked 7 source files)
ERROR: InvocationError for command /home/travis/build/Alir3z4/html2text/.tox/mypy/bin/mypy --strict html2text (exited with code 1)

Seems to be type issues on

html2text/__init__.py:540: error: Incompatible types in assignment (expression has type "Optional[str]", variable has type "str")

[equaeghe]

Seems to be type issues on

html2text/__init__.py:540: error: Incompatible types in assignment (expression has type "Optional[str]", variable has type "str")

Ah, now I get it! Mypy does not infer that attrs.get("href", "") cannot be None. I changed it to attrs.get("href") or "" to convince Mypy. (Bit of a shame, the former seems a more proper approach.) Now that test is passed as well. There's just the inclomplete coverage, but I have the impression that is not due to my patch.

Can you check if you can merge the pull request?

[equaeghe]

@jdufresne , @Alir3z4: Bump.