Python if dataframe does not exist

Describes the cause and action for error messages.


Error Message(English):
if dataframe does not exist

Resolution


関連リンク


Testing if a pandas DataFrame exists - Stack Overflow
https://stackoverflow.com/questions/39337115/testing-if-a-pandas-dataframe-exists

Testing if a pandas...
https://stackoverflow.com/questions/39337115/testing-if-a-pandas-dataframe-exists/39338381

Testing if a Variable Is Defined - Python Cookbook [Book]
https://www.oreilly.com/library/view/python-cookbook/0596001673/ch17s02.html

pandas.DataFrame.empty ? pandas 0.24.1 documentation
https://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.empty.html

pandas.DataFrame.isin ? pandas 0.17.0 documentation
https://pandas.pydata.org/pandas-docs/version/0.17.0/generated/pandas.DataFrame.isin.html

Python - サイトにあるcsvデータをpandasで処理したい|teratail
https://teratail.com/questions/128806

【Python】pandasで指定したフォルダのcsvファイルを開く - Qiita
https://qiita.com/redAlgae/items/1d9788b6f0b6613bf711

How-To Use Python to Remove or Modify Empty Values in a CSV ...
https://code.likeagirl.io/how-to-use-python-to-remove-or-modify-empty-values-in-a-csv-dataset-34426c・・・

How to Check If Any Value is NaN in a Pandas DataFrame - Chartio
https://chartio.com/resources/tutorials/how-to-check-if-any-value-is-nan-in-a-pandas-dataframe/

pyspark.sql module ? PySpark master documentation - Apache Spark
https://spark.apache.org/docs/2.3.0/api/python/pyspark.sql.html



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