Add pydoit configuration, venv etc

.gitignore

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+.idea
+venv
+__pycache__
+.doit.db
+

code/requirements.txt

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+pandas
+primap2
+datalad

dodo.py

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+# define tasks for Climate TRACE data repository
+from doit import get_var
+
+
+# create virtual environment
+def task_setup_venv():
+    """Create virtual environment"""
+    return {
+        'file_dep': ['code/requirements.txt'],
+        'actions': ['python3 -m venv venv',
+                    './venv/bin/pip install --upgrade pip',
+                    './venv/bin/pip install -Ur code/requirements.txt',
+                    'touch venv',],
+        'targets': ['venv'],
+        'verbosity': 2,
+    }
+
+
+# convert inventory
+
+def task_convert_2021():
+    """
+    Convert the 2021 inventory to PRIMAP2 format
+    """
+    return {
+        'targets': [f"data_primap2/2021/ClimateTRACE_Inventory_2021.csv",
+                    f"data_primap2/2021/ClimateTRACE_Inventory_2021.yaml",
+                    f"data_primap2/2021/ClimateTRACE_Inventory_2021.nc"],
+        'actions': [f"datalad run -m 'Convert 2021 inventory to PRIMAP2 format' "
+                    "--explicit "
+                    f"-o data_primap2/2021/ClimateTRACE_Inventory_2021.* "
+                    f"./venv/bin/python code/convert_CT_data_2021.py "],
+        'verbosity': 2,
+        'setup': ['setup_venv'],
+    }
+
+