Eryk Sun added the comment:

I opened issue 29248 for the os.readlink bug and issue 29250 for the 
inconsistency between os.path.islink and os.stat.

Handling junctions as links is new behavior, so I've changed this issue to be 
an enhancement for 3.7.

If the notion of a link is generalized to junctions, then maybe it should be 
further generalized to include all name-surrogate reparse tags [1]. Currently 
for Microsoft tags this includes 

    IO_REPARSE_TAG_MOUNT_POINT (junctions)
    IO_REPARSE_TAG_SYMLINK
    IO_REPARSE_TAG_IIS_CACHE

For non-Microsoft tags it includes 

    IO_REPARSE_TAG_SOLUTIONSOFT
    IO_REPARSE_TAG_OSR_SAMPLE
    IO_REPARSE_TAG_QI_TECH_HSM
    IO_REPARSE_TAG_MAXISCALE_HSM

The last two are outliers. HSM isn't the kind of immediate, fast access that 
one would expect from a symbolic link. All other HSM tags aren't categorized as 
name surrogates.

[1]: https://msdn.microsoft.com/en-us/library/aa365511

----------
type: behavior -> enhancement
versions: +Python 3.7 -Python 3.4, Python 3.5

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<http://bugs.python.org/issue23407>
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