Add .gitignore also in data

src/pyscaffoldext/dsproject/extension.py

@@ -74,6 +74,10 @@ def add_dsproject(struct, opts):
     """
     gitignore_all = templates.gitignore_all(opts)
 
+    path = [opts["project"], "data", ".gitignore"]
+    struct = helpers.ensure(struct, path,
+                            templates.gitignore_data(opts),
+                            helpers.NO_OVERWRITE)
     for folder in ('external', 'interim', 'preprocessed', 'raw'):
         path = [opts["project"], "data", folder, ".gitignore"]
         struct = helpers.ensure(struct, path,

src/pyscaffoldext/dsproject/templates/__init__.py

@@ -21,6 +21,8 @@ def get_template(name):
 def gitignore_all(opts):
     """gitignore file that ignores just everything
 
+    Ignore everything except of this gitignore file.
+
     Args:
         opts (dict): given options, see :obj:`create_project` for
             an extensive list.
@@ -32,6 +34,22 @@ def gitignore_all(opts):
     return template.safe_substitute(opts)
 
 
+def gitignore_data(opts):
+    """gitignore file that ignores almost everything
+
+    Ignore everything except of gitignore also in sub directories.
+
+    Args:
+        opts (dict): given options, see :obj:`create_project` for
+            an extensive list.
+
+    Returns:
+        str: file content as string
+    """
+    template = get_template("gitignore_data")
+    return template.safe_substitute(opts)
+
+
 def environment_yaml(opts):
     """Environment.yaml with some basic libraries
 

src/pyscaffoldext/dsproject/templates/environment_yaml.template

@@ -20,7 +20,7 @@ dependencies:
   - scikit-learn
   - pytorch
   - pip:
-     # add here only pip-packages that are not available in conda-forge! E.g.:
+     # add here only pip-packages that are not available in conda/conda-forge! E.g.:
      - optuna
   # for development only (could also be kept in a separate environment file)
   - jupyterlab

src/pyscaffoldext/dsproject/templates/gitignore_data.template

@@ -0,0 +1,8 @@
+# Ignore everything in this directory
+*
+# Except this file and .gitignore in sub directories
+!.gitignore
+!raw
+!external
+!preprocessed
+!interim

src/pyscaffoldext/dsproject/templates/template_ipynb.template

@@ -6,8 +6,11 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "import os\n",
     "import sys\n",
+    "import math\n",
     "import logging\n",
+    "from pathlib import Path\n",
     "\n",
     "import numpy as np\n",
     "import scipy as sp\n",