title: error: command 'x86_64-linux-gnu-gcc' failed with exit status 1 --> in python3.7.1 and ubuntu 19.04
body: <p>I switch of ubuntu 16 to ubuntu 19 and dose not work gcc 
  this error is:
   error: command 'x86_64-linux-gnu-gcc' failed with exit status 1 --> in python3.7.1 and ubuntu 19.04</p>
  
  <pre><code>sudo apt-get install python3.7-dev
  sudo apt-get install python-dev
  </code></pre>
  
  <p>i test this link but does not work:</p>
  
  <pre><code>https://stackoverflow.com/questions/35048582/how-to-fix-error-command-x86-64-linux-gnu-gcc-failed-with-exit-status-1
  </code></pre>
  
  <hr>
  
  <pre><code>       Compile failed: command 'x86_64-linux-gnu-gcc' failed with exit status 1
    creating tmp
    cc -I/usr/include/libxml2 -I/usr/include/libxml2 -c /tmp/xmlXPathInitfuvqfw8a.c -o tmp/xmlXPathInitfuvqfw8a.o
    /tmp/xmlXPathInitfuvqfw8a.c:2:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
     main (int argc, char **argv) {
     ^~~~
    cc tmp/xmlXPathInitfuvqfw8a.o -lxml2 -o a.out
    error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
    ----------------------------------------
    ERROR: Failed building wheel for lxml
    Running setup.py clean for lxml
    Building wheel for numpy (setup.py) ...
  </code></pre>
  
  <p>I'm very try but i can not solve problem 
  help me thanks</p>