add additional defaults

Author: mscheltienne

template/utils/_imports.py

@@ -8,8 +8,12 @@
 # A mapping from import name to package name (on PyPI) when the package name
 # is different.
 INSTALL_MAPPING = {
+    "codespell_lib": "codespell",
     "cv2": "opencv-python",
+    "pytest_cov": "pytest-cov",
     "serial": "pyserial",
+    "sklearn": "scikit-learn",
+    "sksparse": "scikit-sparse",
 }