Of course! And, why not escape everything else, too?

abc -> ^a^b^c

echo %PATH% -> ^e^c^h^o^ ^%^P^A^T^H^%

In all seriousness, to me this is obvious. When you pass a command to the shell, naturally, certain details are shell-specific.

-10000. Bad idea. Very bad idea. If you want the ^ to be escaped, do it yourself. Or better yet, don't pass shell=True.

anatoly techtonik <techtonik@gmail.com> wrote:

I am banned from tracker, so I post the bug here:

Normal Windows behavior:

>hg status --rev ".^1"
M mercurial\commands.py
? pysptest.py

>hg status --rev .^1
abort: unknown revision '.1'!

So, ^ is an escape character. See http://www.tomshardware.co.uk/forum/35565-45-when-special-command-line

But subprocess doesn't escape it, making cross-platform command fail on Windows.

---[cut pysptest.py]--
import subprocess as sp

# this fails with
# abort: unknown revision '.1'!
cmd = ['hg', 'status', '--rev', '.^1']
# this works
#cmd = 'hg status --rev ".^1"'

# this works too
#cmd = ['hg', 'status', '--rev', '.^^1']

try:
print sp.check_output(cmd, stderr=sp.STDOUT, shell=True)
except Exception as e:

print e.output
------------------------------

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anatoly t.
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