Issue when try to run the setup.py file from deepnl

Dear Sir
You module is useful for the researchers. I try to get experience in this 
When I try to install using setup.py file. I have encountered an error as follows
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

But in my machine I have installed python headers too 
sudo apt-get install python3.7-dev

Please give your explanation based on this issue. As soon as possible