Read and write FASTA files with more information than id and sequence I am trying to read a fasta file, manipulate is in Python (using BioPython) and then write it back.

The format of my sequences is like:

&gt;k119_5 flag=0 multi=141.0706 len=473
AGGTTAGTCAGCACCGTTTCCGTGGTGCTGCCTTTCGCTTCAAAACCGACGGCGTCTATTACTGCATCCACGCCCCGGTGACCTGCCGTTTGTTCAATAATTGACTGTGCCGGATCGCTGTCTTCATCAAAATTAATCGGGATCGCGCCGTAGCGGTCGGCGGCGAAATGCAAGCGGTAGGGATGATGATCAACAACAAAAATCTGTTCCGCACCGAGCAACCGTGCACAGGCGATTGTCAACAATCCCACAGGACCAGCACCATAGACTGC
AACGCTTGAACCTTGTTGGATCTGCGCATTTTTTGCTGCCTGCCATGCCGTTGGCAGAATATCAGAAAGGAAAAGCGCTTTATCATCTGAAAGCAAAGGCGGTACTTTAAACGGCCCCACATTCCCTTTAGGGACGCGGACATATTCCGCCTGCCCACCAGGAACGCCGCCATACAGGTGACTATAACCAAACAATGCCGC


which is the result of the assmebly using Megahit. While trying to read, it only recognizes k119_5 as the id, while I want the whole first line as the id of the sequence. Is vital information I want to keep! 

Any ideas how to work with this?
The description field in the SeqRecord object has the information you are looking for:

&gt;&gt; from Bio import SeqIO
&gt;&gt; s = SeqIO.read('genome.fasta', 'fasta') # single sequence fasta file
&gt;&gt; s.id
k119_5
&gt;&gt; s.description
k119_5 flag=0 multi=141.0706 len=473


Edit: as an aside, if you write a SeqRecord object using SeqIO's write method, the FASTA header should contain the whole original header.