Fixed some bugs I introduced, fixed entrypoint

ptulsconv/__main__.py

@@ -1,6 +1,7 @@
 from optparse import OptionParser, OptionGroup
 import datetime
 import sys
+import importlib
 
 from ptulsconv import __name__
 import ptulsconv
@@ -83,7 +84,7 @@ def main():
 
     parser.add_option_group(informational_options)
 
-    print_banner_style(ptulsconv.__copyright__)
+    print_banner_style("ptulsconv")
 
     (options, args) = parser.parse_args(sys.argv)
 

pyproject.toml

@@ -38,7 +38,7 @@ sphinx = {version= '>= 5.3.0', optional=true}
 doc = ['sphinx', 'sphinx_rtd_theme']
 
 [tool.poetry.scripts]
-wavinfo = 'ptulsconv.__main__:main'
+ptulsconv = 'ptulsconv.__main__:main'
 
 
 [project.urls]