new line chars added to csv file after ftp.storbinary()

new line chars added to csv file after ftp.storbinary()

I am attempting to store a csv file on an ftp server using python's ftplib
module. Right now, I have about 30 lines of code which generates
probabilities of weather values in a 2-d array. I then write this 2-d
array to a csv file.
When I write the csv file onto my local drive, the file displays as
expected within excel. However, when I view the file after I uploaded it
to an ftp server, I see that a new line character has been added after
every row.
I've done some minor testing to see what the problem may be, and I have
been able to upload the csv file with coreftp. The csv file displays
correctly after I do that. So I am pretty sure the file is fine, its
something that is happening when python uploads it onto an ftp server.
I was originally creating a text file with a .csv extension file then
reopening it as a binary file and uploading it. I thought that may be the
issue so I tried using the csv module, but same issue.
Here is my code at the moment...
TEMPSHEADER = [i-50 for i in range(181)]#upper bounds exclusive
WINDSHEADER = [i for i in range(101)]#upper bounds exclusive
HEADER = TEMPSHEADER + WINDSHEADER
for site in ensmosdic:
ensmos = ensmosdic.get(site)
with open(utcnow.strftime("%Y-%m-%d") + "-"
+site+"-prob.csv","w",newline='') as csvfile:
writer = csv.writer(csvfile, delimiter=",")
writer.writerow(["CODE ","F","ForecastDate","HOUR"]+HEADER)
siteTable =[[0 for x in range(286)] for y in range(24,169)]#upper
bounds exclusive
###########
#other code here, but not important with regards to post
###########
for i in siteTable:
writer.writerow(i)
csvfile.close()#not sure if you have to close csv file, not in csv
module docs
f = open(utcnow.strftime("%Y-%m-%d") + "-" +site+"-prob.csv","rb")
ftpInno.storbinary("STOR " + utcnow.strftime("%Y-%m-%d-") + site
+"-prob.csv",f)
f.close()
ftpInno.close()
Thanks in advance