Pandas
Install
pip install pandas
Read CSV
df = pd.read_csv('news_2019.05.10.csv')
Dataframe
Info
df.index
df.columns
df.values
df.shape
df.dtypes
df.head()
df.tail()
df.info()
Select 1 row
df.iloc[[1]] # for positional indexing
df.loc[0] # for label based
df.iloc[-1] == df.loc[df.shape[0]-1]
Select specific rows
df.loc[[9, 99, 999]]
Select 1 column
sumarys = df[['summary']]
# Or
list(df['one'])
dfToList = df['one'].tolist()
Select multiple columns
df[['column1', 'column2', 'column3']]
Select 1 cell
df.iloc[1][1]
df.iloc[1]['summary']
df.iloc[1, 3]
df.loc[1, 'summary']
Subset multiple rows and multiple columns
df.iloc[[1,34,56],[2,4,5]]
df.loc[[1,34,56],['modification_date', 'content']]