Re: [pysolar-discuss] Installation possible issue: Downloads Pysolar to wrong directory?

[Jay Doscher <jay@xxxxxxxxxxxxx>]

Thanks- this installs without error, but does not install for Python 2.  In
order to install and satisfy the original error at the start of the thread,
I have to download the 0.6 tarball and install via "sudo python setup.py
install".

It's a great library though, and my robot literally would not work without
this library.  Thanks!

Jay

On Sat, Aug 8, 2015 at 3:09 PM, Brandon Stafford <brandon@xxxxxxxxxxxxxxx>
wrote:

> That's awesome. I'm glad to see Pysolar used for real stuff.
>
> Just for the sake of history, if you do ever need to install a version of
> Pysolar for Python 2, you can do it like this: sudo pip install -I
> pysolar==0.6
>
> Brandon
>
> On Sat, Aug 8, 2015 at 2:32 PM, Jay Doscher <jay@xxxxxxxxxxxxx> wrote:
>
>> Thanks- I am still using an older release and Python2, which is working
>> OK for me now.  I will be updating my code soon for a newer project, but
>> here's what I have that works fine for me.
>>
>> def getsolarangle():
>>         solarangle = Pysolar.GetAltitude(maplat, maplon,
>> datetime.datetime.utcnow())
>>         return solarangle
>>
>>
>> The code is in active use today, and the robot I am using it for can be
>> found here:
>> https://twitter.com/SolarRobot7
>>
>> Thanks,
>> Jay
>>
>> On Sat, Aug 8, 2015 at 11:26 AM, Brandon Stafford <
>> brandon@xxxxxxxxxxxxxxx> wrote:
>>
>>> Hi Ryan and Jay,
>>>
>>> This reply is a couple of months late, but maybe it will help future
>>> users.
>>>
>>> To install Pysolar, you need to use pip3 rather than pip. Otherwise, it
>>> gets installed for Python 2, which doesn't work, and Python 3 can't find
>>> it. (When you ran into trouble, the installation instructions on
>>> http://pysolar.org were wrong. I just updated them.)
>>>
>>> Anyway, the proper installation command is: sudo pip3 install pysolar
>>>
>>> If you run into the error: "AttributeError: 'datetime.datetime' object
>>> has no attribute 'timestamp'", it is very likely that you are using a new
>>> version of Pysolar (newer than 0.6) that only works with Python 3. The
>>> fundamental problem here is that Python 3's datetime module can produce
>>> Unix timestamps natively, but Python 2's version can't. This is one of the
>>> reasons (maybe the only reason?) that Pysolar needs Python 3.
>>>
>>> If someone wanted to make Pysolar work with Python 2 again, the first
>>> step would be to figure out how to generate timestamps properly. You might
>>> start here:
>>> http://stackoverflow.com/questions/19801727/convert-datetime-to-unix-timestamp-and-convert-it-back-in-python
>>>
>>> Cheers,
>>> Brandon
>>>
>>> On Fri, Jun 12, 2015 at 6:08 PM, Jay Doscher <jay@xxxxxxxxxxxxx> wrote:
>>>
>>>> I'm running pysolar under 2.4, but I use this wording:
>>>>
>>>> import Pysolar
>>>>
>>>> My guess is that "Pysolar" is case sensitive.  Hope this helps,
>>>>
>>>> Jay
>>>>
>>>> On Thu, Jun 4, 2015 at 3:26 PM, Ryan Kapur <ryankapur@xxxxxxxxxxxx>
>>>> wrote:
>>>>
>>>>> I installed pysolar via "sudo pip install pysolar" and I have
>>>>> python3.4.2 on my 64-bit Ubuntu machine.
>>>>>
>>>>> Following along to the documentation, when I'm in python and I try:
>>>>>  *>>>from pysolar.solar import **
>>>>>  ImportError: No module named 'pysolar.solar'
>>>>>
>>>>> Pysolar automatically downloaded to
>>>>> /usr/local/lib/python2.7/dist-packages/pysolar
>>>>>
>>>>>
>>>>> ......................................................................................................
>>>>>
>>>>> To reiterate:
>>>>> When I ran python3 myprogram.py I get:
>>>>>
>>>>> *    from pysolar.solar import *ImportError: No module named
>>>>> 'pysolar.solar'*
>>>>>
>>>>> When I run python myprogram.py I get:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> *Traceback (most recent call last):  File "tracker.py", line 22, in
>>>>> <module>    get_altitude(42.206, -71.382, d)  File
>>>>> "/home/ryankapur/.local/lib/python2.7/site-packages/pysolar/solar.py", line
>>>>> 58, in get_altitude    jd = time.get_julian_solar_day(when)  File
>>>>> "/home/ryankapur/.local/lib/python2.7/site-packages/pysolar/time.py", line
>>>>> 742, in get_julian_solar_day    +AttributeError: 'datetime.datetime' object
>>>>> has no attribute 'timestamp'*
>>>>>
>>>>>
>>>>> .......................................................................................................
>>>>>
>>>>> Why did Pysolar automatically download to the 2.7 directory? I moved
>>>>> it to the 3.4/dist_packages manually with nautilus but* it didn't
>>>>> work*. It only worked when I repeated this process after cloning the
>>>>> git repository.
>>>>>
>>>>> I hope this long message can provide some useful feedback because it
>>>>> was frustrating for me to figure out these import module errors--want to
>>>>> make sure others don't encounter this in the future. Cheers to Pysolar!
>>>>>
>>>>>
>>>>> Regards,
>>>>> Ryan
>>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> Brandon Stafford
>>> Rascal Micro: small computers for art and science
>>> Somerville, MA, USA
>>>
>>
>>
>
>
> --
> Brandon Stafford
> Rascal Micro: small computers for art and science
> Somerville, MA, USA
>