df_none = pd.read_csv('data/src/sample.csv', header=None)
print(df_none)
#     0   1   2   3
# 0  11  12  13  14
# 1  21  22  23  24
# 2  31  32  33  34

# header 指定
df_names = pd.read_csv('data/src/sample.csv', names=('A', 'B', 'C', 'D'))
print(df_names)
#     A   B   C   D
# 0  11  12  13  14
# 1  21  22  23  24
# 2  31  32  33  34

import sqlite3
from contextlib import closing

with closing(sqlite3.connect("database_path")) as conn:
   df = pd.read_sql_query("query", conn)

df.columns

df.values.tolist()
ser.values.tolist()

pd.to_datetimeを使う。  

aggdf: pd.DataFrame = dataframe.resample(agg_unit).agg({"value": "ohlc", "quantity": "sum", "ts": "size"}).fillna(0)
aggdf.columns = [I[1] for I in aggdf.columns]