Syntax error

[peterq...@gmail.com]

I'm in the process of moving my station from an old version of Rasbian and Python 2 to the current version of Debian with Python 3. I'm doing it on different hardware so I can port over my customizations a piece at a time.

I am using the search extension from here: https://github.com/gjr80/weewx_utilities/tree/master/search%20list%20extensions/this/bin/user 

so I can get the high/low temps and rain from previous years on the current date. That's all working. What I don't want is to show again the current day's value again. It's redundant. I put in a if statement that works fine on my Weewx 4.1/python 2 system but fails with 4.2 python 3.

 #if $day.dateTime.format("%Y")<>$year.dateTime.format("%Y")

Log file says:

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: Generate failed with exception '<class 'SyntaxError'>'

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: **** Ignoring template /etc/weewx/skins/Standard/index.html.tmpl

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: **** Reason: invalid syntax (cheetah__etc_weewx_skins_Standard_index_html_tmpl_1605459018_6379018_60306.py, line 1434)

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****  Traceback (most recent call last):

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****    File "/usr/lib/python3/dist-packages/Cheetah/Template.py", line 827, in compile

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****      parseError = genParserErrorFromPythonException(

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****    File "/usr/lib/python3/dist-packages/Cheetah/Template.py", line 2045, in genParserErrorFromPythonException

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****      reader = SourceReader(source, filename=filename)

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****    File "/usr/lib/python3/dist-packages/Cheetah/SourceReader.py", line 19, in __init__

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****      self._srcLen = len(src)

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****  TypeError: object of type 'NoneType' has no len()

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****  During handling of the above exception, another exception occurred:

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****  Traceback (most recent call last):

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****    File "/usr/share/weewx/weewx/cheetahgenerator.py", line 315, in generate

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****      compiled_template = Cheetah.Template.Template(

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****    File "/usr/lib/python3/dist-packages/Cheetah/Template.py", line 1337, in __init__

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****      self._compile(source, file, compilerSettings=compilerSettings)

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****    File "/usr/lib/python3/dist-packages/Cheetah/Template.py", line 1634, in _compile

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****      templateClass = self.compile(source, file,

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****    File "/usr/lib/python3/dist-packages/Cheetah/Template.py", line 832, in compile

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****      raise e

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****    File "/usr/lib/python3/dist-packages/Cheetah/Template.py", line 823, in compile

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****      co = compile(generatedModuleCode, __file__, 'exec')

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****    File "cheetah__etc_weewx_skins_Standard_index_html_tmpl_1605459018_6379018_60306.py", line 1434

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****      if VFN(VFFSL(SL,"day.dateTime",True),"format",False)("%Y")<>VFN(VFFSL(SL,"year.dateTime",True),"format",False)("%Y"): # generated from line 346, col 22

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****                                                                 ^

Nov 15 08:50:18 raspi3 weewx[6772] ERROR weewx.cheetahgenerator: ****  SyntaxError: invalid syntax

Nov 15 08:50:19 raspi3 weewx[6772] INFO weewx.cheetahgenerator: Generated 13 files for report StandardReport in 2.63 seconds

Any ideas?

I've confirmed that both 

$year.dateTime.format("%Y")

and

$day.dateTime.format("%Y")

will  appear the HTML page as the correct values. Neither is null/nothing/0 length.

[peterq...@gmail.com]

Solved it. != works where <> doesn't anymore. There's apparently a difference between how Python 2 and Python 3 compares strings.

 #if $day.dateTime.format("%Y")!=$year.dateTime.format("%Y")