I am working on sounding plot using skewTplus library:

code:

from Imports.commonImports import *
import matplotlib.pyplot as plt
def generateImage(index,lng,lat, ncfile):
    print("generate image called")

    dewPointTemperature=getvar(ncfile,"td2",timeidx=index)[0][:44]

    print(dewPointTemperature.shape)

    temperature=getvar(ncfile,'temp',timeidx=index)[:,0,0]
    pressure=getvar(ncfile,"pressure",timeidx=index)
    print(temperature.shape)
    theta=getvar(ncfile,"T",timeidx=index)+300
    qvapor=getvar(ncfile,"QVAPOR",timeidx=index)
  

    T0 = 273.15
    referencePressure = 100000.0
    epsilon = 0.622  # Rd / Rv
    # [Pa]
    # Temperatures in Celsius
    temperature = theta * np.power((pressure / referencePressure), 0.2854) - T0
    vaporPressure = pressure * qvapor / (epsilon + qvapor)
    dewPointTemperature = 243.5 / ((17.67 / np.log(vaporPressure * 0.01 / 6.112)) - 1)
    dewPointTemperature = np.ma.masked_invalid(dewPointTemperature)
    mySounding = sounding()
    
    temperature = temperature.assign_attrs(units="Celsius", description="Temperature data")
    mySounding.addField('pressure', pressure, "Pressure", "Pa")
    mySounding.addField('temperature', temperature, "Temperature", "C")
    mySounding.addField('dewPointTemperature', dewPointTemperature, "Dew PointTemperature", "C")
    print(mySounding)
    mySounding.quickPlot()

Error:
  File "/home/sammanamgain/miniconda3/envs/soundings/lib/python3.6/site-packages/SkewTplus/sounding.py", line 621, in quickPlot
    pressure, temperature, dewPointTemperature = self.getCleanSounding()
  File "/home/sammanamgain/miniconda3/envs/soundings/lib/python3.6/site-packages/SkewTplus/sounding.py", line 582, in getCleanSounding
    "Dew Point Temp: %s"%dewPointTemperature.units)
SkewTplus.errorHandling.fatalError:  Error getting clean sounding plot

Details:

Temperature units: Celsius
Dew Point Temp: C

When I tried to run without assigning manual units to temperature:

It throws error like this:

File "/home/sammanamgain/miniconda3/envs/soundings/lib/python3.6/site-packages/SkewTplus/sounding.py", line 621, in quickPlot
    pressure, temperature, dewPointTemperature = self.getCleanSounding()
  File "/home/sammanamgain/miniconda3/envs/soundings/lib/python3.6/site-packages/SkewTplus/sounding.py", line 576, in getCleanSounding
    if temperature.units is not None:
  File "/home/sammanamgain/miniconda3/envs/soundings/lib/python3.6/site-packages/xarray/core/common.py", line 240, in __getattr__
    "{!r} object has no attribute {!r}".format(type(self).__name__, name)
AttributeError: 'DataArray' object has no attribute 'units'