Uploaded Test files

venv/Lib/site-packages/nbconvert/preprocessors/convertfigures.py

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+"""Module containing a preprocessor that converts outputs in the notebook from 
+one format to another.
+"""
+
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+
+from .base import Preprocessor
+from traitlets import Unicode
+
+
+class ConvertFiguresPreprocessor(Preprocessor):
+    """
+    Converts all of the outputs in a notebook from one format to another.
+    """
+
+    from_format = Unicode(help='Format the converter accepts').tag(config=True)
+    to_format = Unicode(help='Format the converter writes').tag(config=True)
+
+    def __init__(self, **kw):
+        """
+        Public constructor
+        """
+        super().__init__(**kw)
+
+
+    def convert_figure(self, data_format, data):
+        raise NotImplementedError()
+
+
+    def preprocess_cell(self, cell, resources, cell_index):
+        """
+        Apply a transformation on each cell,
+
+        See base.py
+        """
+
+        # Loop through all of the datatypes of the outputs in the cell.
+        for output in cell.get('outputs', []):
+            if output.output_type in {'execute_result', 'display_data'} \
+                    and self.from_format in output.data \
+                    and self.to_format not in output.data:
+
+                output.data[self.to_format] = self.convert_figure(
+                            self.from_format, output.data[self.from_format])
+
+        return cell, resources