I am trying to use a variable inside a substructure. I guess the variable should be of integer data type, and I am trying to add a loop here but it my data type is list since it contains multiple integers.
INV_match_id = [['3749052'],['3749522']]
from statsbombpy import sb
for x in range(2):
match=INV_match_id[x]
match_db = sb.events(match_id=match)
print(match)
I have tried to extract the data one by one using another variable, but still it got declared as list. Whenever I give direct values to "match" it works. for eg: if I add a line match=12546 the substructure takes the value properly.
Next thing I want to try is hard declare "match" variable as integer. Any input is appreciated. I am pretty new to Python.
Edit: Adding this solution from #quamrana here.
"So, to answer your original question: Is it possible to hard declare a variable in Python?, the answer is No. Variables in python are just references to objects. Objects can be of whatever type they want to be."
You said: " I want to loop and take the numbers one by one."
Did you mean this:
for match in INV_match_id:
match_db = sb.events(match_id=match)
I don't know what you want to do with match_db
Update:
"that single number is also declared as a list. like this- ['125364']"
Well if match == ['125364'] then it depends on whether you want: "125364" or 125364. I assume the latter since you talk a lot about integers:
for match in INV_match_id:
match = int(match[0])
match_db = sb.events(match_id=match)
Next Update:
So you have: INV_match_id = ['3749052','3749522']
This means that the list is a list of strings, so the code changes to this:
for match in INV_match_id:
match_db = sb.events(match_id=int(match))
Your original code was making match into a list of the digits of each number. (eg match = [1,2,5,3,6,4])
Reversionary Update:
This time we have: INV_match_id = [['3749052'],['3749522']]
that just means going back to the second version of my code above:
for match in INV_match_id:
match = int(match[0])
match_db = sb.events(match_id=match)
It's as simple as:
from statsbombpy import sb
INV_match_id = [['3749052'],['3749522']]
for e in INV_match_id:
match_db = sb.events(match_id=e[0])
print(match_db)
You have a list of lists albeit that the sub-lists only contain one item.
match_id can be either a string or int
Related
Python beginner here, sorry if this is a dumb question.
So I have a long string, and I need to add a character in very specific areas of the strings. For example, a | after character number 23, 912, and 1200. I read this Add string in a certain position in Python, but it only works for adding one character.
Also, the solution needs to be expandable, not just do it 3 times. The code I'm making can have lots of different locations with where I want the character to be.
With reference to the link that you posted Add string in a certain position in Python;
If you would like to repeat the operation for different values, you could create a list containing all index positions where you would like your | character to be inserted.
For example,
>>> l = [1, 3, 4]
>>> s = "abcdef"
>>> for i in l:
>>> s = s[:i] + "|" + s[i:] # as suggested in your link
>>> s
'a|b||cdef'
This will allow you to repeat the process for the set of values that you provide in the list. You could also define a function to assist in this, which I could explain if this method is insufficient!
Note, however, that this will insert the character relative to the current iteration. That is, in this example, after adding the | at position 1, the next insert position, 3, is different from what it was before the first insert. You could avoid this (if you want) by including a counter variable to offset all the index positions by the number of inserts that have been executed (will require initial list to be ordered).
Not so good at python, hope I can help
According to that site you went to, you can make a while loop to solve the problem
The code should look something like this
def insert_dash(string, index, addin):
return string[:index] + addin + string[index:]
alldone = False
string = input("String: ")
index = " "
while index:
index = input("Index: ")
addin = input("Add into: ")
string = insert_dash(string, index, addin)
Hope it helps!
PS: I have NOT tried the code, but I think it will work
I am struggling with a Pyspark assignment. I am required to get a sum of all the viewing numbers per channels. I have 2 sets of files: 1 showing the show and views per show the other showing the shows and what channel they are shown on (can be multiple).
I have performed a join operation on the 2 files and the result looks like ..
[(u'Surreal_News', (u'BAT', u'11')),
(u'Hourly_Sports', (u'CNO', u'79')),
(u'Hourly_Sports', (u'CNO', u'3')),
I now need to extract the channel as the key and then I think do a reduceByKey to get the sum of views for the channels.
I have written this function to extract the chan as key with the views alongside, which I could then use a reduceByKey function to sum the results. However when I try to display results of below function with collect() I get an "AttributeError: 'tuple' object has no attribute 'split'" error
def extract_chan_views(show_chan_views):
key_value = show_chan_views.split(",")
chan_views = key_value[1].split(",")
chan = chan_views[0]
views = int(chan_views[1])
return (chan,views)
Since this is an assignment, I'll try to explain what's going on rather than just doing the answer. Hopefully that will be more helpful!
This actually isn't anything to do with pySpark; it's just a plain Python issue. Like the error is saying, you're trying to split a tuple, when split is a string operation. Instead access them by index. The object you're passing in:
[(u'Surreal_News', (u'BAT', u'11')),
(u'Hourly_Sports', (u'CNO', u'79')),
(u'Hourly_Sports', (u'CNO', u'3')),
is a list of tuples, where the first index is a unicode string and the second is another tuple. You can split them apart like this (I'll annotate each step with comments):
for item in your_list:
#item = (u'Surreal_News', (u'BAT', u'11')) on iteration one
first_index, second_index = item #this will unpack the two indices
#now:
#first_index = u'Surreal_News'
#second_index = (u'BAT', u'11')
first_sub_index, second_sub_index = second_index #unpack again
#now:
#first_sub_index = u'BAT'
#second_sub_index = u'11'
Note that you never had to split on commas anywhere. Also note that the u'11' is a string, not an integer in your data. It can be converted, as long as you're sure it's never malformed, with int(u'11'). Or if you prefer specifying indices to unpacking, you can do the same thing:
first_index, second_index = item
is equivalent to:
first_index = item[0]
second_index = item[1]
Also note that this gets more complicated if you are unsure what form the data will take - that is, if sometimes the objects have two items in them, other times three. In that case unpacking and indexing in a generalized way for a loop require a bit more thought.
I am not exactly resolving your code , but I faced same error when I applied join transformation on two datasets.
lets say , A and B are two RDDs.
c = A.join(B)
We may think that c is also Rdd , wrong. It is a tuple object where we cannot perform any split(",") kind of operations.One needs to make c into Rdd then proceed.
If we want tuple to be accessed, Lets say D is tuple.
E= D[1] // instead of E= D.split(",")[1]
Hey I'm writing a program that receives a broadcast from Scratch and then determines based on the broadcast, where to proceed. The code turns the broadcast(list item) into a string and then breaks that string into a list using .split(). The only problem is the broadcast may only be 1 word instead of 2. Is there a way to check if one of the list items from .split() is empty and then change it to a place holder value?
Where I am having trouble
scratchbroadcast = str(msg[1])
BroadcastList = scratchbroadcast.split()
#starts the switch statement that interprets the message and proceeds
#to the appropriate action
v = BroadcastList[0]
w = BroadcastList[1]
if BroadcastList[1] == '':
w = "na"
If BroadcastList contains only one word then BroadcastList will be a single-element list, e.g.
>>> "foo".split()
['foo']
Obviously we can't check whether the second item in the list is an empty string ''; there isn't a second element. Instead, check the length of the list:
w = "na" if len(BroadcastList) == 1 else BroadcastList[1]
Alternatively, use try to catch the IndexError (it's easier to ask for forgiveness than permission):
try:
w = BroadcastList[1]
except IndexError:
w = "na"
Okay, first consider this: how about the third item? Or the fourth? Or the forty-second?
If the string doesn't contain a splitter character (e.g. a space), you wouldn't end up with a list of two items, one of which blank -- you would end up with a list of only one item.
In Python, the length of something is generally obtained through the built-in len() function:
len([]) # == 0
len(["foo"]) # == 1
len(["foo", "bar"]) # == 2
Therefore, you would do:
if len(broadcast_list) == 1:
broadcast_list += [""]
Other ways of doing the same thing include broadcast_list.append("") and broadcast_list.extend([""]). Which one to use is completely up to you; += and .extend are more or less equivalent while .append can only add a single element.
Looking at the rest of your code, your case calls won't work like you expect them to: in Python, strings are truthy, so 'string' or 'otherString' is basically the same as True or True. or is strictly a boolean operator and you can't use it for 'either this or that'.
Python is notorious for not having a switch statement. Your attempt at implementing one would actually be kind of cute had you gone through with it -- something like that can be a pretty good exercise in Python OOP and passing functions as first-class objects. (In my day-to-day use of Python I hardly ever need to do something like that, but it's great to have it in your conceptual toolkit.)
You might be happy to learn that Python strings have a lower method; with it, your code would end up looking something like this:
v = broadcast_list[0].lower()
if v == 'pilight':
# ...
else if v == 'motor':
# ...
else if v == 'camera':
# ....
On a side note, you might want to have a look a PEP8 which is the de facto standard for formatting Python code. If you want other people to be able to quickly figure out your code, you should conform at least to its most basic propositions - such as classes being CamelCased and variables in lowercase, rather than the other way around.
I'm using Python 3. I have two lists of strings and I'm looking for mismatches between the two. The code I have works for smaller lists but not the larger lists I'm writing it for.
Input from the non-working lists is in the following format:
mmec11.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org
mmec13.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org
mmec12.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org
mmec14.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org
My function to compare two lists of data in the above format is:
result = []
for x in mmeList1:
if x not in mmeList2:
result.append(x)
return result
The problem is it's not working. I get an output file of both lists combined into one long list. When I put a test is to say "Hi" every time a match was made, nothing happened. Does anyone have any ideas where I'm going wrong. I work for a telecommunications company and we're trying to go through large database dumps to find missing MMEs.
I'm wondering if maybe my input function is broken? The function is:
for line in input:
field = line.split()
tempMME = field[0]
result.append(tempMME)
I'm not very experienced with this stuff and I'm wondering if the line.split() function is messing up due to the periods in the MME names?
Thank you for any and all help!
If you don't need to preserve ordering, the following will result in all mmes that exist in list2 but not list1.
result = list(set(mmeList2) - set(mmeList1))
I tested your compare function and it's working fine, assuming that the data in mmeList1 and mmeList2 is correct.
For example, I ran a test of your compare function using the following data.
mmeList1:
mmec11.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org
mmec13.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org
mmec12.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org
mmec14.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org
mmeList2:
mmec11.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org
mmec13.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org
mmec12.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org
mmec15.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org
Result contained:
mmec14.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org
I suspect the problem is that mmeList1 and mmeList2 don't contain what you think they contain. Unfortunately, we can't help you more without seeing how mmeList1 and mmeList2 are populated.
If you want to see the differences in both, (i.e. Result should contain mmec14 AND mmec15), then what you want to use is Sets.
For example:
mmeSet1 = set(mmecList1)
mmeSet2 = set(mmecList2)
print mmeSet1.symmetric_difference(mmeSet2)
will result in:
['mmec14.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org', 'mmec15.mmegifffa.mme.epc.mnc980.mcc310.3gppnetwork.org']
At first, using set() on list is best way for decreasing iteration.Try this one
result = []
a=list(set(mmeList1))
b=list(set(mmeList2))
for x in a:
if x not in b:
result.append(x)
return result
I am working with python and I am new to it. I am looking for a way to take a string and split it into two smaller strings. An example of the string is below
wholeString = '102..109'
And what I am trying to get is:
a = '102'
b = '109'
The information will always be separated by two periods like shown above, but the number of characters before and after can range anywhere from 1 - 10 characters in length. I am writing a loop that counts characters before and after the periods and then makes a slice based on those counts, but I was wondering if there was a more elegant way that someone knew about.
Thanks!
Try this:
a, b = wholeString.split('..')
It'll put each value into the corresponding variables.
Look at the string.split method.
split_up = [s.strip() for s in wholeString.split("..")]
This code will also strip off leading and trailing whitespace so you are just left with the values you are looking for. split_up will be a list of these values.