add more useful msg to nbdev_export

Author: hamelsmu

nbdev/doclinks.py

@@ -144,7 +144,6 @@ def nbdev_export(
     "Export notebooks in `path` to Python modules"
     if os.environ.get('IN_TEST',0): return
     if not is_nbdev(): raise Exception('`nbdev_export` must be called from a directory within a nbdev project.')
-    path = Path(path or get_config().nbs_path)
     if procs:
       import nbdev.export
       procs = [getattr(nbdev.export, p) for p in L(procs)]

nbs/api/05_doclinks.ipynb

@@ -363,7 +363,6 @@
     "    \"Export notebooks in `path` to Python modules\"\n",
     "    if os.environ.get('IN_TEST',0): return\n",
     "    if not is_nbdev(): raise Exception('`nbdev_export` must be called from a directory within a nbdev project.')\n",
-    "    path = Path(path or get_config().nbs_path)\n",
     "    if procs:\n",
     "      import nbdev.export\n",
     "      procs = [getattr(nbdev.export, p) for p in L(procs)]\n",