Try this:
from io import StringIO
csvtext = StringIO("""1 1 1 1 1
2
3 4 4 4 4""")
data = pd.read_csv(csvtext, sep='\n', header=None)
data.to_csv('out.csv', index=False, header=False)
#on windows
!type out.csv
Output:
1 1 1 1 1
2
3 4 4 4 4
2
solved converting a text file to csv file with out index