title: Python 3.9: Why I can't import angr
body: <p>Installed <strong>angr</strong> module to Python3.9. Trying to run program, I get this error (I'm using Kali linux, if it's significant here):</p>
  <pre><code>Traceback (most recent call last):
    File &quot;/home/vasyok03/Downloads/angr_basic_solver.py&quot;, line 1, in &lt;module&gt;
      import angr
    File &quot;/home/vasyok03/.local/lib/python3.9/site-packages/angr/__init__.py&quot;, line 31, in &lt;module&gt;
      from .procedures import SIM_PROCEDURES, SimProcedures, SIM_LIBRARIES
    File &quot;/home/vasyok03/.local/lib/python3.9/site-packages/angr/procedures/__init__.py&quot;, line 1, in &lt;module&gt;
      from .procedure_dict import SIM_PROCEDURES, SimProcedures
    File &quot;/home/vasyok03/.local/lib/python3.9/site-packages/angr/procedures/procedure_dict.py&quot;, line 15, in &lt;module&gt;
      for pkg_name, package in autoimport.auto_import_packages('angr.procedures', path, skip_dirs):
    File &quot;/home/vasyok03/.local/lib/python3.9/site-packages/angr/misc/autoimport.py&quot;, line 26, in auto_import_packages
      for name, mod in auto_import_modules('%s.%s' % (base_module, lib_module_name), lib_path, ignore_files=ignore_files):
    File &quot;/home/vasyok03/.local/lib/python3.9/site-packages/angr/misc/autoimport.py&quot;, line 40, in auto_import_modules
      proc_module = importlib.import_module(&quot;.%s&quot; % proc_module_name, base_module)
    File &quot;/usr/lib/python3.9/importlib/__init__.py&quot;, line 127, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
    File &quot;/home/vasyok03/.local/lib/python3.9/site-packages/angr/procedures/linux_kernel/sysinfo.py&quot;, line 5, in &lt;module&gt;
      sysinfo_ty = parse_type(&quot;&quot;&quot;
    File &quot;/home/vasyok03/.local/lib/python3.9/site-packages/angr/sim_type.py&quot;, line 1555, in parse_type
      parser.cparser = pycparser.ply.yacc.yacc(module=parser,
  AttributeError: module 'pycparser' has no attribute 'ply'
  </code></pre>
  <p>I was hoping it's popular error and I would find solution in internet, but didn't find anything.</p>