!367 change position of import mindspore

Merge pull request !367 from quyongxiu1/br_qyx_dev

mindinsight/mindconverter/converter.py

@@ -64,7 +64,9 @@ class Converter:
             self._report.append('[Convert Over]')
             dest_file = os.path.join(output_dir, os.path.basename(infile))
             with os.fdopen(os.open(dest_file, self.flags, self.modes), 'w') as file:
-                file.write(pasta.dump(self._tree))
+                script = pasta.dump(self._tree)
+                script = adjust_mindspore_import_position(script)
+                file.write(script)
             logger.info("Convert success. Result is wrote to %s.", dest_file)
         except ScriptNotSupport as error:
             self._report.append('[ScriptNotSupport] ' + error.message)
@@ -97,6 +99,61 @@ class Converter:
         return replaced_code
 
 
+def get_code_start_line_num(source_lines):
+    """
+    Get the start code line number exclude comments.
+
+    Args:
+        source_lines (list[str]): Split results of code.
+
+    Returns:
+        int, the start line number.
+    """
+    stack = []
+    index = 0
+    for i, line in enumerate(source_lines):
+        line_strip = line.strip()
+        if line_strip.startswith('#'):
+            continue
+        if line_strip.startswith('"""'):
+            if not line_strip.endswith('"""'):
+                stack.append('"""')
+            continue
+        if line_strip.startswith("'''"):
+            if not line_strip.endswith("'''"):
+                stack.append("'''")
+            continue
+        if line_strip.endswith('"""') or line_strip.endswith("'''"):
+            stack.pop()
+            continue
+        if line_strip != '' and not stack:
+            index = i
+            break
+    return index
+
+
+def adjust_mindspore_import_position(script):
+    """
+    Adjust code sentence `import mindspore` in script to a proper position if the sentence is set before a comment.
+
+    Args:
+        script (str): code script before adjust.
+
+    Returns:
+        str, code script adjusted.
+    """
+    script_list = script.split('\n')
+    import_ms_sentence = 'import mindspore'
+    if import_ms_sentence in script_list:
+        import_index = script_list.index(import_ms_sentence)
+        if script_list[import_index + 1].startswith('"""') or script_list[import_index + 1].startswith("'''"):
+            script_list.pop(import_index)
+            new_index = get_code_start_line_num(script_list)
+            script_list.insert(new_index, import_ms_sentence)
+            script = '\n'.join(script_list)
+    return script
+
+
 def _get_name_ext(file):
     """
     Split a file name in name and extension.