| | This seems like it should be simple:
I want a list like any other list, except it has a different .__str__ method.
- Trying to set
object.__str__ = foo results in a read-only error
- Trying ...
| Hello Stack Overflow Community,
I have a list where I want to replace values with None where condition() returns True.
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
For example, if ... | Heres my code:
data = [
[5,3,0,0,7,0,0,0,0],
[6,0,0,1,9,5,0,0,0],
[0,9,8,0,0,0,0,6,0],
[8,0,0,0,6,0,0,0,3],
[4,0,0,8,0,3,0,0,1],
[7,0,0,0,2,0,0,0,6],
[0,6,0,0,0,0,2,8,0],
[0,0,0,4,1,9,0,0,5],
[0,0,0,0,8,0,0,7,9]
]
element = 4
x = 0
y = 0
data[x][y] = element
I want to replace the element at coordinates 0,0 but when i print data it hasnt ... | I have to search through a list and replace all occurrences of one element with another. I know I have to first find the index of all the elements, and then ... | Given a list:
- l1:
['a', 'b', 'c', 'a', 'a', 'b']
- output:
['a', 'b', 'c', 'a_1', 'a_2', 'b_1' ]
I created the following code to get the output. It's messyyy..
for index in range(len(l1)):
...
| So I'm dealing with a csv file that has missing values.
What I want my script to is:
#!/usr/bin/python
import csv
import sys
#1. Place each record of a file in a list.
#2. Iterate thru each ...
| A previous question with the same title as mine has been posted, with (I think) the same question, but had other problems in the code. I was not able to ... | | Sorry, I just found the
id = [conn.cursor() for x in range(100) ]
also works, so my concern will not be a problem anymore.
Thanks for all of your answer, all ... | just a small problem with list and replacing some list entries.
Maybe some informations around my problem. My idea is really simple and easy. I use the module mmap to read ... | I want to write a class that subclasses the Python list and notifies a certain other object when the list changes. Since there are many methods that need to be overridden, ... | I'm very new to Python and I know this is a pretty basic question. I have a text file with columns of data. I want to remove the columns and make ... | How to replace each element in a list with an element in the same position from another list? I thought something like this might work:
list1 = ['a', 'b', 'c', 'd']
list2 ...
| I am trying to check if items in list-one are in list-two and if so then replace the item in list-one in place (by appending a '_' to it). The ... | I have got a list which is:
mylist = {
'a': [(-1,-1), (0.2,0.4)]
...
| I originally thought Python was a pure pass-by-reference language.
Coming from C/C++ I can't help but think about memory management, and it's hard to put it out of my head. So ... | Code:
>>> mylist = ['abc','def','ghi']
>>> mylist
['abc', 'def', 'ghi']
>>> for i,v in enumerate(mylist):
... if v=='abc':
... mylist[i] = ...
| I have a list [1, 2, 3, -100, 2, -100].
I need to replace -100 with "ERROR", and others to their corresponding string.
I could code like this.
resList = []
for val in ...
| | I need to replace a value in the list at a given index. I thought of doing an insert at that particular index with a particular value but this does insert thing and expands the list instead of doing an insert at a particular index. I just want the value in that index replaced Please advise | I agree that it's better to keep it as unicode just until i'm about to print them, but unfortunately there are other modules that have this list as input. Moreover, I am working on natural lanuage processing, so I need words, not unicode.. The code you wrote above gives this as output: list_str = ['\xce\x95\xce\x99\xce\x94\xce\x97\xce\xa3\xce\x95\xce\x99\xce\xa3', '15:00', '\xce\x95\xce\x99\xce\x94\xce\x97\xce\xa3\xce\x95\xce\x99\xce\xa3'] | | Is there any easy way to replace all occurrences of x in a list with y, without using some loop? If I have a list ['a', 'b', 'c', 'b', 'c', 'b', 'd'], and I want to replace all 'b' with 'x', and all 'c' with 'y', how do I do it WITHOUT using a loop to iterate over every element in ... | | Hi I am trying to figure out a way to modify a list of integers such as this [2, 2, 1, 0, 1, 2] I want to have a function that will find a value in the list and change the value after it to the same value. i.e. find 0 in [2, 2, 1, 0, 1, 2] and change it ... | Following are two ways. Create a dictionary of keywords and replacement words. The first iterates on the list and dictionary. The second accepts a string and iterates on the dictionary. Code: Select all data = '''lw_phillips gee_rtp_si05_win10k gee_rtp_si05_win20k TILT_0contour45 tiltdepths lw_verduzco ... |
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