[pycrypto] pycryptodome

Martin Falatic martin at falatic.com
Sun Dec 11 13:22:06 UTC 2016 

When you reinstalled python-pip and python3-pip and got 8.1.2 for both,
that's the "system versions"... stick with that. If you directly upgrade
pip (via the command pip suggests), it causes problems.

As for how to check for exactly what pycrypto you have installed and
where, and how to remove them, refer to my previous email. I went into
great detail on exactly how to do that properly. Doesn't look like you've
done those steps yet.

The fact that pycrypto and pycryptodome conflict with each other means you
ought to uninstall both (per those instructions) and then only install one
of them (for best results, pycryptodome), per python version.

 - Marty


On Sun, December 11, 2016 02:56, Dave Pawson wrote:
> On 8 December 2016 at 20:29, Martin Falatic <martin at falatic.com> wrote:
>
>> This is beyond the scope of pycrypto for the moment - you have system
>> problems because you've upgraded pip yourself.
>
> Python rather than Operating system, yes I might agree.
> Though why the tool used makes a problem I'm less sure?
>
>
>
>>
>> This looks familiar because I did the same exact thing myself in the
>> process of testing this (and it didn't go smoothly - same problem you're
>>  having - so I rolled that back to get pip2 and pip3 working properly).
>>  Let's get you back on track.
>>
>
>
> So to get the desired output, which versions of pip are required?
>
>
> One difficulty I'm seeing is that I am quite unable to determine which
> version of Crypto I have? Surely it's not asking too much to identify at
> least those versions for which you have some control? Either by name,
> version, docstring or some such?
>
>
>>
>> # At this point let's get back to the system default pips and go from
>> there. IF you upgraded the system pip to 9.0.1 as it appears, here's how
>>  to fix them:
>
> Which (versions) do you define as system defaults please?
> Default for Python 2.7 and 3.5?
>
>
>>
>> sudo dnf reinstall python-pip python3-pip
>>
>> # Now, with that done, run these:
>> sudo pip3.5 uninstall pycrypto sudo pip2.7 uninstall pycrypto
>
> Reinstalling:
> python-pip    noarch    8.1.2-2.fc25       fedora    1.7 M
>
> Reinstalling:
> python3-pip    noarch    8.1.2-2.fc25      fedora    1.7 M
>
>
>>
>> # Once that's done, list them as per my earlier email:
>> pip3.5 list | grep pycrypt pip2.7 list | grep pycrypt
>
> # pip2.7 list | grep pycrypt
> pycryptodomex (3.4.3)
>
> # pip3.5 list | grep pycrypt
> (no output)
>
>
>>
>> Shouldn't see `pycrypto` there now. If you do... you installed it some
>> other way (perhaps as a dnf package?) Uninstall it via the same
>> mechanism you installed it and try again.
>
> # locate Crypto shows
> /usr/lib64/python3.5/site-packages/Crypto
>
>
> and
>
> /usr/lib64/python2.7/site-packages/Crypto
> /usr/lib64/python2.7/site-packages/Cryptodome
>
>
>
> which would seem to be a mix. In the /usr/lib/python3.5/site-packages I
> have Crypto within which __init__.py I see
> # Written in 2008 by Dwayne C. Litzenberger <dlitz at dlitz.net>
>
>
> So it is possibly pycrypto original.
> Renamed this dir and my code fails, so this is where it's coming from.
>
>
> pip3.5 install pycryptodomex (my code still fails)
>
>
> pip3.5 install pycryptodome and my code runs.
>
> Unless I get further problems, I'm quite prepared to leave it at that.
> Seems I'm running pycryptodome (how to tell!) which is working.
>
>
> Are you recommending staying with pip2.7 (8.1.2) and
> pip3.5 (8.1.2) ?
>
> Again, thanks for the help Marty.
>
>
> regards
>
>
>
>
>>
>> Now go through the steps in my previous email to install pycryptodome
>> and pycryptodomex for the purpose of this test, and report the results.
>>
>> - Marty
>>
>>
>>
>> On Thu, December 8, 2016 08:51, Dave Pawson wrote:
>>
>>> Subtle. Seems access to pip 3 is via
>>>
>>>
>>>
>>> # python3 -m pip list | grep crypto
>>> DEPRECATION: The default format will switch to columns in the future.
>>> You can use --format=(legacy|columns) (or define a
>>> format=(legacy|columns) in your pip.conf under the [list] section) to
>>> disable this warning. pycrypto (2.6.1)
>>>
>>>
>>> So 3 seems to have pycrypto 2.6.1... maybe.
>>>
>>>
>>>
>>> regards
>>>
>>>
>>>
>>> On 8 December 2016 at 16:47, Dave Pawson <dave.pawson at gmail.com>
>>> wrote:
>>>
>>>
>>>> On 8 December 2016 at 12:46, Martin Falatic <martin at falatic.com>
>>>> wrote:
>>>>
>>>>
>>>>> When you run `pip2.7 list` (pretty sure that's what you need for
>>>>> python2, or `pip list` may be the defacto python2 pip on Fedora)
>>>>> and `pip3.5 list`
>>>>> (for python3), what are you seeing in the area of "pycrypto*" for
>>>>> each of these? I'm hopeful that once you have the proper libs
>>>>> installed for python3 via pip3.5 things should work better.
>>>>
>>>> pip2 list | grep crypt pycryptodomex (3.4.3)
>>>>
>>>>
>>>> No such thing as pip3.x
>>>>
>>>>
>>>>
>>>> dnf install python3-pip Last metadata expiration check: 0:00:48 ago
>>>> on Thu Dec  8 16:40:04 2016.
>>>> Package python3-pip-8.1.2-2.fc25.noarch is already installed,
>>>> skipping. Dependencies resolved.
>>>> Nothing to do.
>>>>
>>>>
>>>>
>>>> dnf info python3-pip Last metadata expiration check: 0:03:38 ago on
>>>> Thu
>>>> Dec  8 16:40:04 2016.
>>>> Installed Packages
>>>> Name        : python3-pip
>>>> Arch        : noarch
>>>> Epoch       : 0
>>>> Version     : 8.1.2
>>>> Release     : 2.fc25
>>>> Size        : 8.6 M
>>>> Repo        : @System
>>>> From repo   : fedora
>>>> Summary     : A tool for installing and managing Python3 packages
>>>> URL         : http://www.pip-installer.org
>>>> License     : MIT
>>>> Description : Pip is a replacement for `easy_install
>>>> : <http://peak.telecommunity.com/DevCenter/EasyInstall>`_.
>>>> It uses mostly the
>>>> : same techniques for finding packages, so packages that were made
>>>> : easy_installable should be pip-installable as well.
>>>>
>>>>
>>>>
>>>>
>>>> Looks like python3-pip is pip?
>>>>
>>>>
>>>>
>>>> Yet
>>>>
>>>>
>>>>
>>>> # pip -V
>>>> pip 9.0.1 from /usr/lib/python2.7/site-packages (python 2.7)
>>>>
>>>>
>>>> So (possibly?) there is a pip looking at python3.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>
>>>>> Normally you'd use the pip variant for python3 (e.g., pip3.5) to
>>>>> install packages for python3. Can you give that a look and retry?
>>>>>
>>>>> Note that I'm not an expert on pycryptodome - my understanding is
>>>>>  that pycryptodome can be used instead of pycrypto, and it seems
>>>>> to work fine on Windows (and I don't have reason to think it'd be
>>>>> any different on Linux). I have no experience with pycryptodomex
>>>>> currently. I have pycryptodome installed on python 2.7 and 3.5 on
>>>>> my Windows box (and pycrypto NOT
>>>>> installed on either) and the test you described ran fine for both.
>>>>>
>>>>>
>>>>> That said, if this continues, what version of Fedora are you
>>>>> running? I
>>>>> can stand up a VM and see for myself.
>>>>
>>>> Latest - Fedora 25.
>>>>
>>>>
>>>>
>>>> Is there a separate mailing list for pycryptodome?
>>>> Perhaps I should ask there?
>>>>
>>>>
>>>>
>>>> Tks. Dave
>>>>
>>>>
>>>>
>>>>
>>>>>
>>>>> - M
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Thu, December 8, 2016 01:44, Dave Pawson wrote:
>>>>>
>>>>>
>>>>>> Additional information.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> pip install pycryptodomex Requirement already satisfied:
>>>>>> pycryptodomex in /usr/lib64/python2.7/site-packages
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> Yet...
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> File
>>>>>> "/usr/lib64/python3.5/site-packages/Crypto/Cipher/blockalgo.py",
>>>>>>  line 141, in __init__ self._cipher = factory.new(key, *args,
>>>>>> **kwargs)
>>>>>> ValueError: IV must be 16 bytes long
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> So (since I'm using python3) it's picking up the Crypto library
>>>>>>  from python 3.5 and pip is installing it in python 2.7
>>>>>>
>>>>>> https://pycryptodome.readthedocs.io/en/latest/src/installation.
>>>>>> html #windo
>>>>>> ws-from-sources-python-3-5-and-newer
>>>>>>
>>>>>> (aside. Yum no longer used in Fedora, just replace with dnf)
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> python3 -m Cryptodome.Selftest /usr/bin/python3: Error while
>>>>>> finding spec for 'Cryptodome.Selftest' (ImportError: No module
>>>>>> named 'Cryptodome')
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> regards Dave
>>>>>>
>>>>>>
>>>>>> On 8 December 2016 at 09:20, Dave Pawson
>>>>>> <dave.pawson at gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>> https://pycryptodome.readthedocs.io/en/latest/src/installatio
>>>>>>> n.ht ml
>>>>>>>
>>>>>>>
>>>>>>> python3 -m Cryptodome.SelfTest /usr/bin/python3: Error while
>>>>>>> finding spec for 'Cryptodome.SelfTest' (ImportError: No
>>>>>>> module named 'Cryptodome')
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> https://pycryptodome.readthedocs.io/en/latest/src/examples.ht
>>>>>>> ml
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> example
>>>>>>>
>>>>>>> python3 exp1.py Traceback (most recent call last): File
>>>>>>> "exp1.py",
>>>>>>> line 12, in <module> cipher = AES.new(key, AES.MODE_EAX)
>>>>>>> AttributeError: module
>>>>>>> 'Crypto.Cipher.AES' has no attribute 'MODE_EAX'
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> which seems to be true
>>>>>>>
>>>>>>> dir(AES) ['AESCipher', 'MODE_CBC', 'MODE_CFB', 'MODE_CTR',
>>>>>>> 'MODE_ECB',
>>>>>>> 'MODE_OFB', 'MODE_OPENPGP', 'MODE_PGP', '_AES',
>>>>>>> '__builtins__',
>>>>>>> '__cached__', '__doc__', '__file__', '__loader__', '__name__',
>>>>>>>  '__package__', '__revision__', '__spec__', 'block_size',
>>>>>>> 'blockalgo',
>>>>>>> 'key_size', 'new']
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Bugs in docs? Library?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Suggestions please.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> regards
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Dave Pawson
>>>>>>> XSLT XSL-FO FAQ.
>>>>>>> Docbook FAQ.
>>>>>>> http://www.dpawson.co.uk
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Dave Pawson
>>>>>> XSLT XSL-FO FAQ.
>>>>>> Docbook FAQ.
>>>>>> http://www.dpawson.co.uk
>>>>>> _______________________________________________
>>>>>> pycrypto mailing list pycrypto at lists.dlitz.net
>>>>>> http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> pycrypto mailing list pycrypto at lists.dlitz.net
>>>>> http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Dave Pawson
>>>> XSLT XSL-FO FAQ.
>>>> Docbook FAQ.
>>>> http://www.dpawson.co.uk
>>>>
>>>>
>>>
>>>
>>>
>>> --
>>> Dave Pawson
>>> XSLT XSL-FO FAQ.
>>> Docbook FAQ.
>>> http://www.dpawson.co.uk
>>> _______________________________________________
>>> pycrypto mailing list pycrypto at lists.dlitz.net
>>> http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto
>>>
>>>
>>>
>>
>>
>> _______________________________________________
>> pycrypto mailing list pycrypto at lists.dlitz.net
>> http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto
>>
>
>
>
> --
> Dave Pawson
> XSLT XSL-FO FAQ.
> Docbook FAQ.
> http://www.dpawson.co.uk
> _______________________________________________
> pycrypto mailing list pycrypto at lists.dlitz.net
> http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto
>
>

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