dataframe is empty and columns is empty but only index have values in dataframe pandas code example

Example 1: empty dataframe

newDF = pd.DataFrame() #creates a new dataframe that's empty
newDF = newDF.append(oldDF, ignore_index = True) # ignoring index is optional
# try printing some data from newDF
print newDF.head() #again optional

Example 2: df empty python

if df.empty:
  print('Your df is empty...')