回答編集履歴
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test
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@@ -1 +1,65 @@
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そもそもJSON形式じゃないですね、それ。[JSON の紹介](https://www.json.org/json-ja.html)
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正しい形式で記述されていれば、リストもちゃんと読み込めます。
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```Python
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import json
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src = '["value1", "value2", "value3"]'
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print(json.loads(src)) # ok
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src = "['value1', 'value2', 'value3']"
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print(json.loads(src)) # ng
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```
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**実行結果** [Wandbox](https://wandbox.org/permlink/zQ9ZmidFFgZdlhgW)
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```
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['value1', 'value2', 'value3']
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Traceback (most recent call last):
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File "prog.py", line 7, in <module>
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print(json.loads(src))
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...
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json.decoder.JSONDecodeError: Expecting value: line 1 column 2 (char 1)
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```
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---
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[ast.literal_eval](https://docs.python.jp/3/library/ast.html#ast.literal_eval)が使えます。
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Pythonのリテラルの形式で書かれた文字列をロードしたい場合は、[ast.literal_eval](https://docs.python.jp/3/library/ast.html#ast.literal_eval)が使えます。
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```Python
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import ast
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src = '["value1", "value2", "value3"]'
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print(ast.literal_eval(src)) # ok
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src = "['value1', 'value2', 'value3']"
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print(ast.literal_eval(src)) # ok
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```
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