Load & Import First Column from CSV File as pandas DataFrame in Python (Example Code)

import pandas as pd                                     # Import pandas library

import pandas as pd # Import pandas library

my_df = pd.DataFrame({'A':range(100, 105),              # Construct new pandas DataFrame
                      'B':[9, 3, 7, 1, 2],
                      'C':['a', 'f', 'c', 'f', 'f'],
                      'D':range(35, 30, - 1)})
print(my_df)
#      A  B  C   D
# 0  100  9  a  35
# 1  101  3  f  34
# 2  102  7  c  33
# 3  103  1  f  32
# 4  104  2  f  31

my_df = pd.DataFrame({'A':range(100, 105), # Construct new pandas DataFrame 'B':[9, 3, 7, 1, 2], 'C':['a', 'f', 'c', 'f', 'f'], 'D':range(35, 30, - 1)}) print(my_df) # A B C D # 0 100 9 a 35 # 1 101 3 f 34 # 2 102 7 c 33 # 3 103 1 f 32 # 4 104 2 f 31

my_df.to_csv('my_df.csv')                               # Write exemplifying DataFrame to folder

my_df.to_csv('my_df.csv') # Write exemplifying DataFrame to folder

my_df_load = pd.read_csv('my_df.csv', usecols = ['A'])  # Import CSV & print output
print(my_df_load)
#      A
# 0  100
# 1  101
# 2  102
# 3  103
# 4  104

my_df_load = pd.read_csv('my_df.csv', usecols = ['A']) # Import CSV & print output print(my_df_load) # A # 0 100 # 1 101 # 2 102 # 3 103 # 4 104