json.decoder.JSONDecodeError

错误详情

raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

原因

大概率是 json.load()载入json文件时出现了错误,问题一般是由于json文件损坏或内容缺失,题主是因为open()文件的时候选择了read模式导致json文件被清空。

解决方案

#方式一
with open('xxx.json','r') as fr: #默认为 encoding='utf-8‘ 注意是否需要改为 encoding='gbk'等
	json_file = json.load(fr) #若文件不为空但json_file读出来为空,注意编码格式是否匹配

#方式二
with open('xxx.json','r') as fr: #同上
	json_file = json.loads(fr.read())
GitHub 加速计划 / js / json
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适用于现代 C++ 的 JSON。
最近提交(Master分支:3 个月前 )
2134cb94 * change NLOHMANN_JSON_FROM_WITH_DEFAULT to let NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT work with an empty JSON instance * fix ci_static_analysis_clang (ci_clang_tidy) * change NLOHMANN_JSON_FROM_WITH_DEFAULT to let NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT work with an empty JSON instance 4 天前
6057b31d * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * Use ubuntu-latest image to run Valgrind (#4575) * :wrench: use Clang image to run valgrind * :wrench: use Clang image to run valgrind * :wrench: use Clang image to run valgrind * :wrench: use Ubuntu image to run valgrind * Use Clang image to run iwyu (#4574) * :wrench: use Clang image to run iwyu * :wrench: use Clang image to run iwyu * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :wrench: overwork astyle call * :art: format code * :hammer: clean up 6 天前
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