Error with the. SDR driver and using a venv

[Dan Hinckley]

I am working through Vince's How-To and all goes well until I run a station reconfigure and it throws an error I do not understand.

WeeWx 5.2 in a venv

Ubuntu VM in Parallels

Mac mini M1

===============

RTL_433 is properly installed a runs `rtl_433 -M utc -F json -f 915M -R 297 -C customary` just fine:

rtl_433 version 25.12-29-g0efbda9a branch master at 202602251314 inputs file rtl_tcp RTL-SDR with TLS

New defaults active, use "-Y classic -s 250k" if you need the old defaults

Use "-F log" if you want any messages, warnings, and errors in the console.

Detached kernel driver

Found Rafael Micro R828D tuner

RTL-SDR Blog V4 Detected

Exact sample rate is: 1000000.026491 Hz

Allocating 15 zero-copy buffers

{"time" : "2026-03-01 19:16:17", "model" : "ThermoPro-TP211B", "id" : 6874, "temperature_F" : 84.380, "mic" : "CHECKSUM"}

---------------------

Reconfigure output:

=================

weectl station reconfigure --config=/home/house/weewx-data/sdr.conf  --driver=user.sdr

Using configuration file /home/house/weewx-data/sdr.conf

Processing configuration file /home/house/weewx-data/sdr.conf

Give a description of the station. This will be used for the title of reports.

description [Dinkins Bayou Water Temps]: 

Specify altitude, with units 'foot' or 'meter'.  For example:

  35, foot

  12, meter

altitude [20, foot]: 

Specify latitude in decimal degrees, negative for south.

latitude [26.479936]: 

Specify longitude in decimal degrees, negative for west.

longitude [-82.174106]: 

Choose a unit system for the reports. Later, you can modify

your choice, or choose a combination of units. Unit systems

include:

  us         (ºF, inHg, in, mph)

  metricwx   (ºC, mbar, mm, m/s)

  metric     (ºC, mbar, cm, km/h)

unit system [us]: 

/home/house/weewx-data/bin/user/sdr.py:237: SyntaxWarning: invalid escape sequence '\d'

  TS = re.compile('^\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d[\s]+')

/home/house/weewx-data/bin/user/sdr.py:335: SyntaxWarning: invalid escape sequence '\d'

  TS_PATTERN = re.compile('(\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d)')

/home/house/weewx-data/bin/user/sdr.py:556: SyntaxWarning: invalid escape sequence '\d'

  RAIN = re.compile('Total rain fall since last reset: ([\d.]+)')

/home/house/weewx-data/bin/user/sdr.py:557: SyntaxWarning: invalid escape sequence '\d'

  MSG = re.compile('Msg (\d+), (.*)')

/home/house/weewx-data/bin/user/sdr.py:558: SyntaxWarning: invalid escape sequence '\d'

  MSG31 = re.compile('Wind ([\d.]+) kmph / ([\d.]+) mph ([\d.]+).*rain gauge ([\d.]+) in')

/home/house/weewx-data/bin/user/sdr.py:559: SyntaxWarning: invalid escape sequence '\d'

  MSG38 = re.compile('Wind ([\d.]+) kmph / ([\d.]+) mph, ([\d.-]+) C ([\d.-]+) F ([\d.]+) % RH')

/home/house/weewx-data/bin/user/sdr.py:735: SyntaxWarning: invalid escape sequence '\d'

  PATTERN = re.compile('0x([0-9a-fA-F]+) Ch ([A-C]): ([\d.-]+) C ([\d.-]+) F ([\d]+) % RH')

/home/house/weewx-data/bin/user/sdr.py:895: SyntaxWarning: invalid escape sequence '\d'

  PATTERN = re.compile('0x([0-9a-fA-F]+) - (1R|2F): ([\d.-]+) C ([\d.-]+) F')

/home/house/weewx-data/bin/user/sdr.py:947: SyntaxWarning: invalid escape sequence '\d'

  PATTERN = re.compile('0x([0-9a-fA-F]+) Ch (.) Msg Type 0x([0-9a-fA-F]+): ([\d.-]+) ([CF]) ([\d.]+) % RH Strikes ([\d]+) Distance ([\d.]+)')

/home/house/weewx-data/bin/user/sdr.py:1130: SyntaxWarning: invalid escape sequence '\d'

  'temperature', re.compile('([\d.-]+) F'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:1131: SyntaxWarning: invalid escape sequence '\d'

  'Humidity': ['humidity', re.compile('([\d.]+) %'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:1442: SyntaxWarning: invalid escape sequence '\d'

  'temperature', re.compile('([\d.-]+) C'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:1443: SyntaxWarning: invalid escape sequence '\d'

  'Humidity': ['humidity', re.compile('([\d.]+) %'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:1616: SyntaxWarning: invalid escape sequence '\d'

  'temperature', re.compile('([\d.-]+) C'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:1618: SyntaxWarning: invalid escape sequence '\d'

  'humidity', re.compile('([\d.]+) %'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:1780: SyntaxWarning: invalid escape sequence '\d'

  ['temperature', re.compile('([\d.-]+) C'), lambda x: float(x)]

/home/house/weewx-data/bin/user/sdr.py:1812: SyntaxWarning: invalid escape sequence '\d'

  'Temperature': ['temperature', re.compile('([\d.-]+) C'), lambda x: float(x)]

/home/house/weewx-data/bin/user/sdr.py:1919: SyntaxWarning: invalid escape sequence '\d'

  ['temperature', re.compile('([\d.-]+) C'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:1920: SyntaxWarning: invalid escape sequence '\d'

  'Humidity': ['humidity', re.compile('([\d.]+) %'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:1922: SyntaxWarning: invalid escape sequence '\d'

  ['pressure', re.compile('([\d.-]+) hPa'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:2294: SyntaxWarning: invalid escape sequence '\d'

  'temperature', re.compile('([\d.-]+) C'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:2295: SyntaxWarning: invalid escape sequence '\d'

  'Humidity': ['humidity', re.compile('([\d.]+) %'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:2339: SyntaxWarning: invalid escape sequence '\d'

  'temperature', re.compile('([\d.-]+) C'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:2340: SyntaxWarning: invalid escape sequence '\d'

  'Wind Strength': ['wind_speed', re.compile('([\d.]+) km/h'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:2341: SyntaxWarning: invalid escape sequence '\d'

  'Direction': ['wind_dir', re.compile('([\d.]+) '), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:2410: SyntaxWarning: invalid escape sequence '\d'

  'Rain': ['rain_total', re.compile('([\d.]+) '), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:2534: SyntaxWarning: invalid escape sequence '\d'

  'wind_speed', re.compile('([\d.]+) m/s'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:2537: SyntaxWarning: invalid escape sequence '\d'

  'temperature', re.compile('([\d.-]+) C'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:2540: SyntaxWarning: invalid escape sequence '\d'

  'rain_total', re.compile('([\d.]+) mm'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:2689: SyntaxWarning: invalid escape sequence '\d'

  'Temperature': ['temperature', re.compile('([\d.-]+) C'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:2759: SyntaxWarning: invalid escape sequence '\d'

  ['rain_rate', re.compile('([\d.]+) in'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:2761: SyntaxWarning: invalid escape sequence '\d'

  ['rain_total', re.compile('([\d.]+) in'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:2792: SyntaxWarning: invalid escape sequence '\d'

  'Temperature': ['temperature', re.compile('([\d.-]+) C'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:2793: SyntaxWarning: invalid escape sequence '\d'

  'Humidity': ['humidity', re.compile('([\d.]+) %'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:2794: SyntaxWarning: invalid escape sequence '\d'

  'Pressure': ['pressure', re.compile('([\d.]+) mbar'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:2840: SyntaxWarning: invalid escape sequence '\d'

  'Temperature': ['temperature', re.compile('([\d.-]+) C'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:2841: SyntaxWarning: invalid escape sequence '\d'

  'Humidity': ['humidity', re.compile('([\d.]+) %'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:2842: SyntaxWarning: invalid escape sequence '\d'

  'Pressure': ['pressure', re.compile('([\d.]+) mbar'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:2890: SyntaxWarning: invalid escape sequence '\d'

  'temperature', re.compile('([\d.-]+) C'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:2891: SyntaxWarning: invalid escape sequence '\d'

  'Humidity': ['humidity', re.compile('([\d.]+) %'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:2941: SyntaxWarning: invalid escape sequence '\d'

  'temperature', re.compile('([\d.-]+) C'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:2943: SyntaxWarning: invalid escape sequence '\d'

  'temperature_F', re.compile('([\d.-]+) F'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:2944: SyntaxWarning: invalid escape sequence '\d'

  'Humidity': ['humidity', re.compile('([\d.]+) %'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:2982: SyntaxWarning: invalid escape sequence '\d'

  ['temperature', re.compile('([\d.-]+) C'), lambda x : float(x)]}

/home/house/weewx-data/bin/user/sdr.py:3018: SyntaxWarning: invalid escape sequence '\d'

  ['temperature', re.compile('([\d.-]+) C'), lambda x : float(x)]}

/home/house/weewx-data/bin/user/sdr.py:3053: SyntaxWarning: invalid escape sequence '\d'

  ['uv_index', re.compile('([\d.-]+) C'), lambda x : float(x)]}

/home/house/weewx-data/bin/user/sdr.py:3088: SyntaxWarning: invalid escape sequence '\d'

  'UV Index': ['uv_index', re.compile('([\d.-]+) C'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:3128: SyntaxWarning: invalid escape sequence '\d'

  'wind_gust', re.compile('([\d.]+) m'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:3130: SyntaxWarning: invalid escape sequence '\d'

  'wind_speed', re.compile('([\d.]+) m'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:3132: SyntaxWarning: invalid escape sequence '\d'

  'wind_dir', re.compile('([\d.]+) degrees'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:3169: SyntaxWarning: invalid escape sequence '\d'

  'Celcius': ['temperature', re.compile('([\d.-]+) C'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:3207: SyntaxWarning: invalid escape sequence '\d'

  'Celcius': ['temperature', re.compile('([\d.-]+) C'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:3208: SyntaxWarning: invalid escape sequence '\d'

  'Humidity': ['humidity', re.compile('([\d.]+) %'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:3209: SyntaxWarning: invalid escape sequence '\d'

  'Pressure': ['pressure', re.compile('([\d.]+) mPa'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:3333: SyntaxWarning: invalid escape sequence '\d'

  ['temperature', re.compile('([\d.-]+) C'), lambda x : float(x)],

/home/house/weewx-data/bin/user/sdr.py:3335: SyntaxWarning: invalid escape sequence '\d'

  ['humidity', re.compile('([\d.-]+) %'), lambda x : float(x)]}

/home/house/weewx-data/bin/user/sdr.py:3412: SyntaxWarning: invalid escape sequence '\d'

  'temperature', re.compile('([\d.-]+) C'), lambda x: float(x)],

/home/house/weewx-data/bin/user/sdr.py:3413: SyntaxWarning: invalid escape sequence '\d'

  'Humidity': ['humidity', re.compile('([\d.]+) %'), lambda x: float(x)]}

/home/house/weewx-data/bin/user/sdr.py:3584: SyntaxWarning: invalid escape sequence '\d'

  TS_PATTERN = re.compile('(\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d)[\s]+:*(.*)')

You can register the station on weewx.com, where it will be included in a

map. If you choose to register, you will also need a unique URL to identify 

the station (such as a website, or a WeatherUnderground link).

register this station (y/n)? [n] 

Saving configuration file /home/house/weewx-data/sdr.conf

Saved old configuration file as /home/house/weewx-data/sdr.conf.20260301143214

[John Smith]

/home/house/weewx-data/bin/user/sdr.py:237: SyntaxWarning: invalid escape sequence '\d'

  TS = re.compile('^\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d[\s]+')

There is problems with the regular expressions used.

My knowledge of regular expressions is limited so I can't give much advice other than the usual about using the latest stable versions of libraries and skins.

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[Vince Skahan]

On Sunday, March 1, 2026 at 2:51:27 PM UTC-8 Vince Skahan wrote:

Current python got pretty whiny about regex stuff....

Try something like this from the patch I did for my rtldavis consolidation of Luc's code there.  Same problem.

        IDENTIFIER = re.compile(r"^\d\d:\d\d:\d\d.[\d]{6} [0-9A-F][0-7][0-9A-F]{14}")

See the the r character outside the outer quotes within the ( ) ????

Try that and see if it quiets down.

Doh - typo there sorry.  Worked the same for me in the rtldavis stuff if the outer quotes were ' rather than " characters.