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Get last row in last column from a csv file using python

Hello I have a csv file that contains those columns :
index, text , author , date
i want to select the last column from the last inserted row
what i did so far :
inputFile = 'bouyguesForum_results.csv'
f1 = open(inputFile, "r")
last_line = f1.readlines()[-1]
f1.close()
print (last_line)
this code gets me the last inserted row but i want to select the last column which is the date column
code output :
9,"J'ai souscrit à un abonnement Bbox de 6€99 + 3€ de location de box, sauf que j'ai été prélevé de 19€99 ce mois-ci, sachant que je n'ai eu aucune consommation supplémentaire, ni d'appel, et je n'ai souscrit à rien, et rien n'est précisé sur ma facture. Ce n'est pas normal, et je veux une explication.",JUSTINE,17 novembre 2021
thank you for your time.

You can do this: if you want the very last row
with open('data.csv', 'r') as csv:
data = [[x.strip() for x in line.strip().split(',')] for line in csv.readlines()][-1][-1]
print(data)
or if you want all the last elements in each row
with open('data.csv', 'r') as csv:
data = [line.strip().split(',')[-1] for line in csv.readlines()]
print(data)

Since you got the last row, now you can just split it into a list. Sample-
last_line = last_line.strip("\n")
last_line = [x for x in last_line.split(",") if x!=""]
last_date = last_line[-1]

How to add a suffix (like measure units cm, m, km, etc) at the end of a float in my list?

I have to make a program that will allow the user to save people's personal information like their last names, first names, genders, heights and so on... I am not allowed to use dictionaries so no use in recommending it.
I don't know how to add the suffix "cm" when I print the person's height. Here is my code that request height input:
starting line 68
taille = input("Entrez la taille de la personne en cm (0 à 250) :\n").strip()
isTailleValid = validation_taille(taille)
while not isTailleValid:
taille = input("Taille invalide, entrez bien une valeur entre 0 et 250 :\n").strip()
isTailleValid = validation_taille(taille)
taille = float(taille)
personInf[Personne_taille] = taille
This is where the program request information about the height (french: taille) after that it adds that input to a list called Liste_info under the Personne_taille index by doing:
Liste_info.append(personInf)
now when I call the function to print out the result it shows up like this:
Is there any way to add " cm" at the end of 175?

while not isTailleValid:
taille = input("Taille invalide, entrez bien une valeur entre 0 et 250 :\n").strip()
isTailleValid = validation_taille(taille)
personInf[Personne_taille] = taille + "cm"

I think you have to make the float a str type then merge the strings
while not isTailleValid:
taille = input("Taille invalide, entrez bien une valeur entre 0 et 250 :\n").strip()
isTailleValid = validation_taille(taille)
personInf[Personne_taille] = str(taille) + " cm"

Add a column in a numpy_array Python

I'm using a numpy array with Python and I would like to know how I can add a new column at the end of my array?
I have an array with N rows and I calculate for each row a new value which is named X. I would like, for each row, to add this new value in a new column.
My script is (the interesting part is at the end of my script) :
#!/usr/bin/python
# coding: utf-8
from astropy.io import fits
import numpy as np
#import matplotlib.pyplot as plt
import math
#########################################
# Fichier contenant la liste des champs #
#########################################
with open("liste_essai.txt", "r") as f :
fichier_entier = f.read()
files = fichier_entier.split("\n")
for fichier in files :
with open(fichier, 'r') :
reading = fits.open(fichier) # Ouverture du fichier à l'aide d'astropy
tbdata = reading[1].data # Lecture des données fits
#######################################################
# Application du tri en fonction de divers paramètres #
#######################################################
#mask1 = tbdata['CHI'] < 1.0 # Création d'un masque pour la condition CHI
#tbdata_temp1 = tbdata[mask1]
#print "Tri effectué sur CHI"
#mask2 = tbdata_temp1['PROB'] > 0.01 # Création d'un second masque sur la condition PROB
#tbdata_temp2 = tbdata_temp1[mask2]
#print "Tri effectué sur PROB"
#mask3 = tbdata_temp2['SHARP'] > -0.4 # Création d'un 3e masque sur la condition SHARP (1/2)
#tbdata_temp3 = tbdata_temp2[mask3]
#mask4 = tbdata_temp3['SHARP'] < 0.1 # Création d'un 4e masque sur la condition SHARP (2/2)
#tbdata_final = tbdata_temp3[mask4]
#print "Création de la nouvelle table finale"
#print tbdata_final # Affichage de la table après toutes les conditions
#fig = plt.figure()
#plt.plot(tbdata_final['G'] - tbdata_final['R'], tbdata_final['G'], '.')
#plt.title('Diagramme Couleur-Magnitude')
#plt.xlabel('(g-r)')
#plt.ylabel('g')
#plt.xlim(-2,2)
#plt.ylim(15,26)
#plt.gca().invert_yaxis()
#plt.show()
#fig.savefig()
#print "Création du Diagramme"
#hdu = fits.BinTableHDU(data=tbdata_final)
#hdu.writeto('{}_{}'.format(fichier,'traité')) # Ecriture du résultat obtenu dans un nouveau fichier fits
#print "Ecriture du nouveau fichier traité"
#################################################
# Détermination des valeurs extremales du champ #
#################################################
RA_max = np.max(tbdata['RA'])
RA_min = np.min(tbdata['RA'])
#print "RA_max vaut : " + str(RA_max)
#print "RA_min vaut : " + str(RA_min)
DEC_max = np.max(tbdata['DEC'])
DEC_min = np.min(tbdata['DEC'])
#print "DEC_max vaut : " + str(DEC_max)
#print "DEC_min vaut : " + str(DEC_min)
#########################################
# Calcul de la valeur centrale du champ #
#########################################
RA_central = (RA_max + RA_min)/2.
DEC_central = (DEC_max + DEC_min)/2.
#print "RA_central vaut : " + str(RA_central)
#print "DEC_central vaut : " + str(DEC_central)
print " "
print " ######################################### "
##############################
# Détermination de X et de Y #
##############################
i = 0
N = len(tbdata)
for i in range(0,N) :
print "Valeur de RA à la ligne " + str(i) + " est : " + str(tbdata['RA'][i])
print "Valeur de RA_moyen est : " + str(RA_central)
print "Valeur de DEC_moyen est : " + str(DEC_central)
X = (tbdata['RA'][i] - RA_central)*math.cos(DEC_central)
Add_column = np.vstack(tbdata, X) # ==> ????
print "La valeur de X est : " + str(X)
print " "
I tried something but I'm not sure that's working.
And I've a second question if it's possible. In the plot part, I would like to save my plot for each file but with the name of each file. I think that I need to write something like :
plt.savefig('graph',"{}_{}".format(fichier,png))

Numpy arrays are always going to be stored in a continuous memory block, that means that once you've created it, making it any bigger will mean numpy will have to copy the original array to make sure that the addition will be beside the original array in memory.
If you have a general idea of how many columns you will be adding, you can create the original array with additional columns of zeros. This will reserve the space in memory for your array and then you can "add" columns by overwriting the left-most column of zeros.
If you have the memory to spare you can always over-estimate the number of columns you will need and then remove extra columns of zeros later on. As far as I know this is the only way to avoid copying when adding new columns to a numpy array.
For example:
my_array = np.random.rand(200,3) # the original array
zeros = np.zeros((200,400)) # anticipates 400 additional columns
my_array = np.hstack((my_array,zeros)) # join my_array with the array of zeros (only this step will make a copy)
current_column = 3 # keeps track of left most column of zeros
new_columns = [] # put list of new columns to add here
for col in new_columns:
my_array[:,current_column] = col
current_column += 1

Mini-game with Python 3.2 does not work

from random import randrange
def init_config(m, n):
print("""Crée une configuration pour la configuration initiale""")
config = [[0 for a in range(n)] for b in range(m)]
for k in range(m*n): a, b = k//n, k%n
config[a][b]=k+1
return config
def disp(config, m, n):
print("""Affiche un damier d'une configuration existante avec le format voulu""")
s=t=" +%s\n" % ("---+"*n)
for k in range(n):"%s %s" % (" "if k==0 else "",chr(65+k if k<26 else 71+k)),
for k in range(m*n): i, j=k/n, k%n
s +="%s%s|%03d%s"%(k/n+1 if k%n==0 else ""," "if k%n==0 and k/n<9 else "",config[a][b],"|\n" + t if b == n-1 else "")
return s
def set_treasure (config):
import random
a=random.randrange(0,lin)
b=random.randrange(0,col)
treasure=config[a][b]=0
def main():
print("Entrer les dimensions du damier")
lin=int(input('nombre de lignes : '))
if type (lin)!=int :
print(""" ***ERREUR !***\n le nombre de lignes doit etre un nombre entier""")
lin=int(input('number of lines : '))
elif lin>26:
print(""" ***ERREUR !***\n le nombre de lignes ne doit pas excéder 26 !""")
lin=int(input('nombre de ligne : '))
col=int(input('nombre de colonne: '))
if type (col)!=int :
print(""" ***ERREUR !***\n le nombre de colonnes doit etre un nombre entier""")
col=int(input('nombre de colonne: '))
elif col>38:
print(""" ***ERREUR !***\n le nombre de colonnes ne doit pas excéder 38 !""")
col=int(input('nombre de colonne: '))
n_treasure=int(input('Combien de trésor voulez vous mettre dans le jeux: '))
if type (n_treasure)!=int :
print(""" ***ERREUR !***\n le nombre de trésor doit etre un nombre entier""")
n_treasure=int(input('nombre de trésor que vous avez demander dans le jeux: '))
config=init_config(lin,col)
for k in range (n_treasure):
if set_treasure (config):
board=disp(config, lin, col)
print(board)
for a in range (lin):
for b in range (col):
if config[a][b]==0:
print("Il y a un trésor dans", chr(65+b),a+1)
hello all , I just finished this mini game with python 3.2 but the problem is that the program does not work I do not find the problem, i have TypeError: Win32RawInput() takes at most 2 positional arguments (4 given)

Since you haven't provided any explanation of what the program should actually do and I don't speak French, here's what I think is the problem: In the last line
input("Il y a un trésor dans", chr(65+b),a+1)
you try to display several different types as the input question. But from the context, I think what you really want to do is print these types. Do this by simply typing:
print("Il y a un trésor dans", chr(65+b),a+1)
Perhaps the same goes for fifth-to-last line. It should be
print(board)

if config[a][b]==0:
input("Il y a un trésor dans", chr(65+b),a+1)
So here you are passing four arguments to the built-in function input which takes at most one argument.
input(...)
input([prompt]) -> string
Read a string from standard input. The trailing newline is stripped.
If the user hits EOF (Unix: Ctl-D, Windows: Ctl-Z+Return), raise EOFError.
On Unix, GNU readline is used if enabled. The prompt string, if given,
is printed without a trailing newline before reading.

How to correctly parse a tiled map in a text file?

I'm making a RPG with Python and pygame for a school project. In order to create the few maps, I have chosen the Tile Mapping techniques I have seen in some tutorials, using a *.txt file.
However, I have to cut some sprites (trees, houses, ...) into several pieces. The problem is that I'm running out of characters to represent them all!
I also remember that it's possible to take several characters as one (ex : take "100" as one an not as one "1" and two "0"s) and/or to put spaces between characters in the file (e.g. "170 0 2 5 12 48" which is read as six sprites).
But I really don't know how to adapt my program to do this way. I'm pretty sure that I need to modify the way the file is read, but how?
Here's the reading function :
class Niveau:
def __init__(self, fichier):
self.fichier = fichier
self.structure = 0
def generer(self):
"""Méthode permettant de générer le niveau en fonction du fichier.
On crée une liste générale, contenant une liste par ligne à afficher"""
#On ouvre le fichier
with open(self.fichier, "r") as fichier:
structure_niveau = []
#On parcourt les lignes du fichier
for ligne in fichier:
ligne_niveau = []
#On parcourt les sprites (lettres) contenus dans le fichier
for sprite in ligne:
#On ignore les "\n" de fin de ligne
if sprite != '\n':
#On ajoute le sprite à la liste de la ligne
ligne_niveau.append(sprite)
#On ajoute la ligne à la liste du niveau
structure_niveau.append(ligne_niveau)
#On sauvegarde cette structure
self.structure = structure_niveau
def afficher(self, fenetre):
"""Méthode permettant d'afficher le niveau en fonction
de la liste de structure renvoyée par generer()"""
#Chargement des images (seule celle d'arrivée contient de la transparence)
Rocher = pygame.image.load(image_Rocher).convert()
Buisson = pygame.image.load(image_Buisson).convert()
#On parcourt la liste du niveau
num_ligne = 0
for ligne in self.structure:
#On parcourt les listes de lignes
num_case = 0
for sprite in ligne:
#On calcule la position réelle en pixels
x = (num_case+0.5) * taille_sprite
y = (num_ligne+1) * taille_sprite
if sprite == 'R': #R = Rocher
fenetre.blit(Rocher, (x,y))
if sprite == 'B':
fenetre.blit(Buisson,(x,y))
num_case += 1
num_ligne += 1

I think what you want is str.split():
for ligne in fichier:
ligne_niveau = []
#On parcourt les sprites (lettres) contenus dans le fichier
for sprite in ligne.split(): # note split here
ligne_niveau.append(sprite) # no need to check for line end
#On ajoute la ligne à la liste du niveau
structure_niveau.append(ligne_niveau)
split without any arguments will join all consecutive whitespace (including tabs '\t' and newlines '\n') into a single split. For example:
"\ta 13 b \t22 6e\n".split() == ['a', '13', 'b', '22', '6e']
Note that the "sprites" don't have to be the same length, so there's no need for fill characters like extra 0s or *s. You can also simplify using a list comprehension:
def generer(self):
with open(self.fichier) as fichier:
self.structure = [ligne.split() for ligne in fichier]
Alternatively, consider using a comma-separated value format - Python has a whole module (csv) for that:
a,13,b,22,6e