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    Just van den Broecke
    @justb4
    Wew, you people are far ahead! Just tonight struggling with scipy, seaborn pandas (not even geopandas yet) mainly to get plot-formatting right. But awesome R2 ("R-square") results with cheap (< $80,- AlphaSense) Air Quality sensors calibrated with our national Environmental Agency (RIVM) sensors thanks to work from JRC folks, Michel Gerboles et al. Some text on this project for EU JRC in my blog . And the code: https://github.com/smartemission/smartemission/blob/master/etl/calibration/airsenseurplots.py .
    Adam Steer
    @adamsteer
    oh, my .. you mean weekend โ€˜coding' projects - usually fixing my bikes, hanging out with the kids, not coding/analysis (that consumes my week already! ) :D
    Joris Van den Bossche
    @jorisvandenbossche

    Is Tom A. saying that extension arrays will enable Dask for GeoPandas? https://twitter.com/TomAugspurger/status/1088644514594533376?s=19

    @anitagraser not directly. But with his recent work, it should become easier to do. But if you want to play with the geopandas / dask combo, I would still recommend looking at https://github.com/mrocklin/dask-geopandas

    I can help with setting it up if you want
    That experimental package also implements a parallel spatial join, has some functionality to partition the dataset by regions, and already parallelizes all the spatial operations and predicates.
    Anita Graser
    @anitagraser
    @justb4 That's awesome, we were just talking about measuring air quality and wondering if there are any cheap low-maintenance sensors with reasonable results.
    Samweli Mwakisambwe
    @Samweli
    Hi everyone!
    Just van den Broecke
    @justb4
    @anitagraser I'll be happy to assist you folks. AlphaSense gas sensors (like above) are good but need quite some extra electronics and calibration, even per-sensor, to get results R2 ~ 0.9, like above. For PM (finedust) there is the Luftdaten project, was at a Meetup this week, amazing fast-growing, low-entry, activist/community project!, felt like when OSM once began: https://luftdaten.info/ and The Map: http://deutschland.maps.luftdaten.info, still coverage to be done in your country! Also Luftdaten sensors (SDS011 for PM10/2.5) have calibration issues. Possibly we Python folks can help out with our Scipy/Numpy/Pandas ANN MLV knowledge there. And if you want (Mikro)Python and LoRaWAN: https://twitter.com/justb4/status/1087740772210884608
    Anita Graser
    @anitagraser
    @justb4 I'll definitely keep it in mind. Our first goal is to count people movements in urban settings but, of course, we'd love to support more research questions if we already bother with getting permits for distributing sensors.
    Andrew Cutts
    @acgeospatial
    Hi All. Really pleased to be part of this group. The growth in Python generally is amazing. I just looked at the stackoverflow trends and more questions are asked about Python now than are asked about Javascript (ok very different languages) but still. https://insights.stackoverflow.com/trends?tags=python%2Cjavascript
    It looks (to me at least) that most of this growth seems to come from Pandas and Tensorflow. https://insights.stackoverflow.com/trends?tags=numpy%2Cpandas%2Cscikit-learn%2Ctensorflow
    Anita Graser
    @anitagraser
    ๐Ÿ๐ŸŽ‰
    Andrew Cutts
    @acgeospatial
    difficult to know what the 'geopython' growth areas are. GeoPandas and for me Rasterio feature alot.
    Just van den Broecke
    @justb4
    image.png
    From West to East: Martin Is also organizer of the GeoPython conf: http://2019.geopython.net/
    image.png
    Andrew Cutts
    @acgeospatial
    A Python package to read/write spatial data to a geopackage. https://github.com/achapkowski/pygeopackage
    Anita Graser
    @anitagraser
    @acgeospatial have you tried it yet? Might be nice on systems where one doesn't want to bother installing fiona
    Andrew Cutts
    @acgeospatial
    @anitagraser not tried it yet, it is on the list though :)
    Tom Kralidis
    @tomkralidis
    Anyone doing any geopython talks this year? We submitted pygeoapi, GeoHealthCheck and a geopython workshop for FOSS4G Bucharest.
    Just van den Broecke
    @justb4
    Pondering GeoPython conf: http://2019.geopython.net/ Basel, deadline CFP Feb 28. GeoHealthCheck and Stetl. But may collide with FOSS4G-NL, though latter not yet confirmed with LOC. Anyone else going to Basel?
    Anita Graser
    @anitagraser
    Not Basel, but I'm thinking of flying the geo flag at https://www.pydays.at
    Tom Kralidis
    @tomkralidis
    hey all: PSA for thus yearโ€™s OSGeo Community Sprint in Minneapolis: https://wiki.osgeo.org/wiki/OSGeo_Community_Sprint_2019
    I will be there and hope to see more geo Python folks!
    Just van den Broecke
    @justb4
    Can't be there, wish I could. Maybe we can work remotely together? I can reserve some time, hey maybe even with @jorgejesus et al from GeoCat office in NL?
    Angelos Tzotsos
    @kalxas
    I will also try to join remotely this year
    Jorge Samuel Mendes de Jesus
    @jorgejesus
    @justb4 I am checking with the rest of geocats
    Just van den Broecke
    @justb4
    @jorgejesus ok!
    Jorge Samuel Mendes de Jesus
    @jorgejesus
    We will have a code sprint on 15 and 16th May @Geocat HQ
    Just van den Broecke
    @justb4
    @jorgejesus good, count me in!
    Tom Kralidis
    @tomkralidis
    @all hi @/all for the OSGeo Code Sprint in a couple of weeks I put up some items for various geopython projects we can work on: https://wiki.osgeo.org/wiki/OSGeo_Community_Sprint_2019#Project_Plans . Please feel free to add/update.
    epifanio
    @epifanio
    Hi I need some help to debug a problem (encode/decode of non-ascii characters) in pydap
    the dds was not generated with an encode error .. found in the apache log (running pydap as wsgi in apache)
    I hacked a temporary fix adding an exception and asking pydap to decode using utf-8 instead of ascii
    while ythis fixed the dds rendering
    in a python client I can't load such dataset which returns the following error:
    ---------------------------------------------------------------------------
    UnicodeDecodeError                        Traceback (most recent call last)
    <ipython-input-5-2bb713f8a88f> in <module>
          1 from pydap.client import open_url
    ----> 2 dataset = open_url('http://dap.metsis.met.no/SN99938.nc')
    
    /usr/local/lib/python3.7/dist-packages/pydap/client.py in open_url(url, application, session, output_grid, timeout, verify)
         65     """
         66     dataset = DAPHandler(url, application, session, output_grid,
    ---> 67                          timeout=timeout, verify=verify).dataset
         68 
         69     # attach server-side functions
    
    /usr/local/lib/python3.7/dist-packages/pydap/handlers/dap.py in __init__(self, url, application, session, output_grid, timeout, verify)
         61                 verify=verify)
         62         raise_for_status(r)
    ---> 63         das = safe_charset_text(r)
         64 
         65         # build the dataset from the DDS and add attributes from the DAS
    
    /usr/local/lib/python3.7/dist-packages/pydap/handlers/dap.py in safe_charset_text(r)
        115     else:
        116         r.charset = get_charset(r)
    --> 117         return r.text
        118 
        119 
    
    /usr/local/lib/python3.7/dist-packages/webob/response.py in _text__get(self)
        620         decoding = self.charset or self.default_body_encoding
        621         body = self.body
    --> 622         return body.decode(decoding, self.unicode_errors)
        623 
        624     def _text__set(self, value):
    
    UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 94: ordinal not in range(128)
    Tom Kralidis
    @tomkralidis
    @epifanio suggest posting this in pydap/pydap ?
    epifanio
    @epifanio
    ah sorry, I was sure I was on pydap! I'll repost on the right channel!
    Tom Kralidis
    @tomkralidis
    all good my friend :)
    Jorge Samuel Mendes de Jesus
    @jorgejesus
    This appeared on my radar: https://pypi.org/project/whitebox/
    A Python package for advanced geospatial data analysis.
    anyone knows it, or test it ?
    Brian M Hamlin
    @darkblue-b
    @all hello. osgeolive on Ubuntu 1804 python rep here.. looking for feedback on python stack
    .. since I am US-based, I notice the PANGEO project, and the requirements for that
    @barryrowlingson definitely R sf Jupyter .. so there will be three Jupyter kernels at least, but you might imagine, disk space is an issue
    Just van den Broecke
    @justb4
    Today/tomorrow is the GeoPython Conference 2019 in Basel. Actually two livestreams on YT: track1: https://www.youtube.com/watch?v=3KRYObqpMlk track2: https://www.youtube.com/watch?v=67C5jsmfE2s (will present GeoHealthCheck there 09:45 CEST)
    Just van den Broecke
    @justb4
    Brian M Hamlin
    @darkblue-b
    @justb4 good on you - fine presentation on GeoHealthCheck .. mention of python2.7 was well done