FastKML parsing from files about fastkml HOT 8 CLOSED

@whatnick You shouldn't replace the newline character, you could just do myfile.read().encode('utf-8') and you should be able to parse your file through fastkml. Although I think a user shouldn't do this encoding/decoding explicitly, it should be wrapped in their implementation and hide from user. @cleder

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Since the documentation hasn't been updated , even for Python 3 + , I wrote a detailed article here : https://medium.com/@wwaryan/the-definite-only-guide-to-fastkml-58b8e19b8454

Cheers!

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@whatnick You shouldn't replace the newline character, you could just do myfile.read().encode('utf-8') and you should be able to parse your file through fastkml. Although I think a user shouldn't do this encoding/decoding explicitly, it should be wrapped in their implementation and hide from user. @cleder

There should be a documentation update with the method you described presented to new users of this. Because right now if you follow along with the starter examples, you get an error only solved by using this snippet.

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yep, we need a documentation update here: https://fastkml.readthedocs.io/en/latest/usage_guide.html#read-a-kml-file-string

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At least when lxml is configured, it seems like the from_string(...) method actually expects bytes, not a string.

Ultimately, lxml wants to decide the encoding from the encoding declaration in the document itself (like <?xml version="1.0" encoding="UTF-8"?>) if it can.

Perhaps the method should be renamed to from_bytes(...)?

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@samifouad I haven't worked with this lib for a while, not sure if they have already updated.

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Agree with the comumentation update

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None of this works. What else could I try? Thank you.

#with open(INPUT_KML_FILE, 'rb') as myfile: #AttributeError: 'bytes' object has no attribute 'encode'
#with open(INPUT_KML_FILE, 'rt', encoding="utf-8") as myfile: #ValueError
#with open(INPUT_KML_FILE, 'rt') as myfile: #ValueError
#with open(INPUT_KML_FILE, 'r') as myfile: #ValueError
#BAD doc=myfile.read()
doc = myfile.read().encode('utf-8')

k = kml.KML()
k.from_string(doc)

Edit: It worked with another KML file. Is there a way to get FastKML/lxml to say which line it didn't like?

k = kml.KML()
with open(INPUT_KML_FILE,'rb') as kmlFile:
k.from_string(kmlFile.read())

c:\fastkml>Edit.KML.py
Traceback (most recent call last):
  File "C:\fastkml\Edit.KML.py", line 15, in <module>
    k.from_string(kmlFile.read())
  File "C:\Python38\lib\site-packages\fastkml\kml.py", line 101, in from_string
    feature.from_element(document)
  File "C:\Python38\lib\site-packages\fastkml\kml.py", line 991, in from_element
    feature.from_element(folder)
  File "C:\Python38\lib\site-packages\fastkml\kml.py", line 1030, in from_element
    feature.from_element(folder)
  File "C:\Python38\lib\site-packages\fastkml\kml.py", line 1035, in from_element
    feature.from_element(placemark)
  File "C:\Python38\lib\site-packages\fastkml\kml.py", line 1077, in from_element
    geom.from_element(line)
  File "C:\Python38\lib\site-packages\fastkml\geometry.py", line 413, in from_element
    geom = self._get_geometry(element)
  File "C:\Python38\lib\site-packages\fastkml\geometry.py", line 347, in _get_geometry
    return LineString(coords)
  File "C:\Python38\lib\site-packages\pygeoif\geometry.py", line 334, in __init__
    raise ValueError
ValueError

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