python3 venv packages for SampleCode.py

frozen-requirements.txt

absl-py==0.9.0
astor==0.8.1
cachetools==4.1.0
certifi==2020.4.5.1
cftime==1.1.3
chardet==3.0.4
gast==0.2.2
google-auth==1.16.0
google-auth-oauthlib==0.4.1
google-pasta==0.2.0
grpcio==1.29.0
h5py==2.10.0
idna==2.9
importlib-metadata==1.6.0
Keras-Applications==1.0.8
Keras-Preprocessing==1.1.2
Markdown==3.2.2
netCDF4==1.5.3
numpy==1.17.3
oauthlib==3.1.0
opt-einsum==3.2.1
protobuf==3.12.2
pyasn1==0.4.8
pyasn1-modules==0.2.8
requests==2.23.0
requests-oauthlib==1.3.0
rsa==4.0
six==1.15.0
tensorboard==2.0.2
tensorflow==2.0.0
tensorflow-estimator==2.0.1
termcolor==1.1.0
urllib3==1.25.9
Werkzeug==1.0.1
wrapt==1.12.1
zipp==3.1.0

requirements.txt

numpy==1.17.3 
tensorflow==2.0.0   
netCDF4==1.5.3 

SampleCode.py

"""
numpy                1.17.3 
tensorflow           2.0.0   
netCDF4              1.5.3
Get these: "pip install -r https://gist.githubusercontent.com/aakash30jan/9ae0cf3dde8a63d28df5275873cb0f10/raw/9e8d7e1f84fc2f67fe842d75e8623756319786bb/requirements.txt"
Get full environment: "pip install -r https://gist.githubusercontent.com/aakash30jan/9ae0cf3dde8a63d28df5275873cb0f10/raw/9e8d7e1f84fc2f67fe842d75e8623756319786bb/frozen-requirements.txt"
"""
##The sequence of import which doesn't work
import numpy as np  
import tensorflow as tf       ### <<< if imported here, saving .nc doesn't work
import netCDF4 as nc
#import tensorflow as tf      ### <<< if imported here, saving .nc works properly

print("I am TensorFlow ", tf.__version__, " but I have no job here")
print("I would let NetCDF4 ", nc.__version__," do it's job, for now")

Nx = 160                            # just another number
outputfile = "outputfile.nc"        # just another filename
ArrayField = np.ones((Nx,Nx,1))     # sample array to write

print("Writing field data of shape", ArrayField.shape)
ncfile = nc.Dataset("outputfile.nc",'w',format='NETCDF4_CLASSIC')

ncfile.createDimension('X',ArrayField.shape[0])             #line is probably okay
newx = ncfile.createVariable('X','d',('X'))                 #line is probably okay
newx[:] = np.linspace(0.00,1.00,ArrayField.shape[0])        #line is probably okay
velx = ncfile.createVariable('Component_X','d',('X','X'))   #line is probably okay
velx[:] = ArrayField[:,:,0].T                               #line is probably okay

print("Something written to: ", outputfile)
ncfile.close()  ###### <<<<<<< Gives error here 
print("Data successfully written to: ", outputfile)