From 919f61440c13b1989e8c433715bb4cfa9c1282b9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bertrand=20N=C3=A9ron?= <bneron@pasteur.fr>
Date: Thu, 5 Jun 2025 08:50:50 +0200
Subject: [PATCH] remove exercise in Data_Types
---
source/Data_Types.rst | 36 ++----------------------------------
1 file changed, 2 insertions(+), 34 deletions(-)
diff --git a/source/Data_Types.rst b/source/Data_Types.rst
index e36ec6b..cae429a 100644
--- a/source/Data_Types.rst
+++ b/source/Data_Types.rst
@@ -330,39 +330,6 @@ Exercise
.. #. Using the shorter string ``s = 'gaattc'`` draw what happens in memory when you reverse ``s``.
-Exercise
---------
-
-| The ``il2_human`` sequence contains 4 cysteins (C) in positions 9, 78, 125, 145.
-| We want to generate the sequence of a mutant where the cysteins 78 and 125 are replaced by serins (S)
-| Write the pseudocode, before proposing an implementation:
-
-
-We have to take care of the difference between Python string numbering and usual position numbering:
-
-| C in seq -> in string
-| 9 -> 8
-| 78 -> 77
-| 125 -> 124
-| 145 -> 144
-
-| *generate 3 slices from the il2_human*
-| *head <- from the begining and cut between the first cystein and the second*
-| *body <- include the 2nd and 3rd cystein*
-| *tail <- cut after the 3rd cystein until the end*
-| *replace body cystein by serin*
-| *make new sequence with head body_mutate tail*
-
-
-::
-
- il2_human = 'MYRMQLLSCIALSLALVTNSAPTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHLRPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT'
- head = il2_human[:77]
- body = il2_human[77:125]
- tail = il2_human[126:]
- body_mutate = body.replace('C', 'S')
- il2_mutate = head + body_mutate + tail
-
Exercise
--------
@@ -388,7 +355,8 @@ Use the sv40 sequence to test your function.
>>>
>>> sequence = fasta_to_one_line(sv40)
>>> gc_pc = gc_percent(sequence)
- >>> report = "The sv40 is {0} bp length and has {1:.2%} gc".format(len(sequence), gc_pc)
+ >>> # report = "The sv40 is {0} bp length and has {1:.2%} gc".format(len(sequence), gc_pc)
+ >>> report = f"The sv40 is {len(sequence)} bp length and has {gc_pc:.2%} gc"
>>> print report
'The sv40 is 5243 bp length and has 40.80% gc'
--
GitLab