I'm not sure if this is real bug, but the documentation of fnmatch.translate states:

fnmatch.translate(pattern)

    Return the shell-style pattern converted to a regular expression.



My intuition about shell-style pattern is that for example, pattern:t3
should match only t3, and not ost3 or xxxxxt3, but what I receive from fnmatch is:
In [2]: fnmatch.translate("t3")
Out[2]: 't3\\Z(?ms)'

so using for example re.search will match not only on t3, but also on xxxt3 (in shell-like pattern is *t3). So... I  believe it should be changed or at least the documentation should be more specific about what "shell-style pattern" mean.

it can be changed easyly with changing the return statement in 
fnmatch.py function translate 

from:
    return res + '\Z(?ms)'

to:
    return '^' + res + '\Z(?ms)'

The result of fnmatch.translate() is used with re.match(). It could be even simplified if use it with re.fullmatch(), but I afraid such change can break user code.

So you suggest that this output should not be used with re.search ? Why?

I think it should be documented, or maybe it is?

I know that this is not possible to introduce such a change to the currently used versions.

I think it should be documented.

I notice that it puts the inline flags at the end. It would be better to put them at the start.

Since issue22493 fnmatch.translate() uses scoped modifiers: r'(?s:%s)\Z' % res.

Here is a patch that updates the documentation for fnmatch.translate().

New changeset a1aef5f84142 by Serhiy Storchaka in branch '3.5':
Issue #22949: Documented that fnmatch.translate() is for use with re.match().
https://hg.python.org/cpython/rev/a1aef5f84142

New changeset 8a564ab1d208 by Serhiy Storchaka in branch '2.7':
Issue #22949: Documented that fnmatch.translate() is for use with re.match().
https://hg.python.org/cpython/rev/8a564ab1d208

New changeset dfda2f33fd08 by Serhiy Storchaka in branch '3.6':
Issue #22949: Documented that fnmatch.translate() is for use with re.match().
https://hg.python.org/cpython/rev/dfda2f33fd08

New changeset d103ee917342 by Serhiy Storchaka in branch 'default':
Issue #22949: Documented that fnmatch.translate() is for use with re.match().
https://hg.python.org/cpython/rev/d103ee917342