Printing out the exact number of characters from a 512 character data package
0
I am trying to figure out how to print out exactly 3000 characters. I managed to print 2560, but I am unsure how to print the chunk of the 512 character data package.
import urllib
url = raw_input('Enter an URL: ')
try:
data = urllib.urlopen(url)
size = 0
except:
print ('An improperly formatted or non-existent URL')
exit()
while True:
info = data.read(512)
if len(info)<1: break
size = size + len(info)
if size >= 3100: break
print info[0:3000]python python-2.7
asked Nov 11 at 17:41
Alice
12
add a comment |
0
I am trying to figure out how to print out exactly 3000 characters. I managed to print 2560, but I am unsure how to print the chunk of the 512 character data package.
import urllib
url = raw_input('Enter an URL: ')
try:
data = urllib.urlopen(url)
size = 0
except:
print ('An improperly formatted or non-existent URL')
exit()
while True:
info = data.read(512)
if len(info)<1: break
size = size + len(info)
if size >= 3100: break
print info[0:3000]python python-2.7
asked Nov 11 at 17:41
Alice
12
The simplest way would be to print one character at a time, counting each character as you print it, and stop when that counter reaches 3000.
– John Gordon
Nov 11 at 17:56
What you want to do, is instead of just abruptly breaking when you cross 3000, you just need to get the characters needed to hit 3000, and then break. i should also mention, you can always just open the entire url in one go, and slice the string till 3000 characters.
– Paritosh Singh
Nov 11 at 18:01
it makes sense to use a slice method. However, even if I open the entire url, I cannot slice a string info till 3000 chars. Have no idea, why the output is blank (I added print info[0:3000] right after the code) Any ideas?
– Alice
Nov 11 at 20:41
Prof told us to use 512 characters for a single data package. I can't change that number.
– Alice
Nov 12 at 3:05
add a comment |
0
0
0
I am trying to figure out how to print out exactly 3000 characters. I managed to print 2560, but I am unsure how to print the chunk of the 512 character data package.
import urllib
url = raw_input('Enter an URL: ')
try:
data = urllib.urlopen(url)
size = 0
except:
print ('An improperly formatted or non-existent URL')
exit()
while True:
info = data.read(512)
if len(info)<1: break
size = size + len(info)
if size >= 3100: break
print info[0:3000]python python-2.7
asked Nov 11 at 17:41
Alice
12
I am trying to figure out how to print out exactly 3000 characters. I managed to print 2560, but I am unsure how to print the chunk of the 512 character data package.
import urllib
url = raw_input('Enter an URL: ')
try:
data = urllib.urlopen(url)
size = 0
except:
print ('An improperly formatted or non-existent URL')
exit()
while True:
info = data.read(512)
if len(info)<1: break
size = size + len(info)
if size >= 3100: break
print info[0:3000]import urllib
url = raw_input('Enter an URL: ')
try:
data = urllib.urlopen(url)
size = 0
except:
print ('An improperly formatted or non-existent URL')
exit()
while True:
info = data.read(512)
if len(info)<1: break
size = size + len(info)
if size >= 3100: break
print info[0:3000]import urllib
url = raw_input('Enter an URL: ')
try:
data = urllib.urlopen(url)
size = 0
except:
print ('An improperly formatted or non-existent URL')
exit()
while True:
info = data.read(512)
if len(info)<1: break
size = size + len(info)
if size >= 3100: break
print info[0:3000]python python-2.7
python python-2.7
asked Nov 11 at 17:41
Alice
12
asked Nov 11 at 17:41
Alice
12
edited Nov 12 at 2:28
asked Nov 11 at 17:41
Alice
12
asked Nov 11 at 17:41
Alice
12
asked Nov 11 at 17:41
Alice
12
12
The simplest way would be to print one character at a time, counting each character as you print it, and stop when that counter reaches 3000.
– John Gordon
Nov 11 at 17:56
What you want to do, is instead of just abruptly breaking when you cross 3000, you just need to get the characters needed to hit 3000, and then break. i should also mention, you can always just open the entire url in one go, and slice the string till 3000 characters.
– Paritosh Singh
Nov 11 at 18:01
it makes sense to use a slice method. However, even if I open the entire url, I cannot slice a string info till 3000 chars. Have no idea, why the output is blank (I added print info[0:3000] right after the code) Any ideas?
– Alice
Nov 11 at 20:41
Prof told us to use 512 characters for a single data package. I can't change that number.
– Alice
Nov 12 at 3:05
add a comment |
The simplest way would be to print one character at a time, counting each character as you print it, and stop when that counter reaches 3000.
– John Gordon
Nov 11 at 17:56
What you want to do, is instead of just abruptly breaking when you cross 3000, you just need to get the characters needed to hit 3000, and then break. i should also mention, you can always just open the entire url in one go, and slice the string till 3000 characters.
– Paritosh Singh
Nov 11 at 18:01
it makes sense to use a slice method. However, even if I open the entire url, I cannot slice a string info till 3000 chars. Have no idea, why the output is blank (I added print info[0:3000] right after the code) Any ideas?
– Alice
Nov 11 at 20:41
Prof told us to use 512 characters for a single data package. I can't change that number.
– Alice
Nov 12 at 3:05
The simplest way would be to print one character at a time, counting each character as you print it, and stop when that counter reaches 3000.
– John Gordon
Nov 11 at 17:56
The simplest way would be to print one character at a time, counting each character as you print it, and stop when that counter reaches 3000.
– John Gordon
Nov 11 at 17:56
What you want to do, is instead of just abruptly breaking when you cross 3000, you just need to get the characters needed to hit 3000, and then break. i should also mention, you can always just open the entire url in one go, and slice the string till 3000 characters.
– Paritosh Singh
Nov 11 at 18:01
What you want to do, is instead of just abruptly breaking when you cross 3000, you just need to get the characters needed to hit 3000, and then break. i should also mention, you can always just open the entire url in one go, and slice the string till 3000 characters.
– Paritosh Singh
Nov 11 at 18:01
it makes sense to use a slice method. However, even if I open the entire url, I cannot slice a string info till 3000 chars. Have no idea, why the output is blank (I added print info[0:3000] right after the code) Any ideas?
– Alice
Nov 11 at 20:41
it makes sense to use a slice method. However, even if I open the entire url, I cannot slice a string info till 3000 chars. Have no idea, why the output is blank (I added print info[0:3000] right after the code) Any ideas?
– Alice
Nov 11 at 20:41
Prof told us to use 512 characters for a single data package. I can't change that number.
– Alice
Nov 12 at 3:05
Prof told us to use 512 characters for a single data package. I can't change that number.
– Alice
Nov 12 at 3:05
add a comment |
1 Answer
1
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votes
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import urllib
url = raw_input('Enter an URL: ')
info = ""
try:
data = urllib.urlopen(url)
size = 0
except:
print ('An improperly formatted or non-existent URL')
exit()
while True:
info = info + data.read(512) #read 512 data package
if len(info)<1: break
if len(info) >= 3000: break
print len(info[:3000])answered Nov 12 at 17:29
Alice
12
add a comment |
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import urllib
url = raw_input('Enter an URL: ')
info = ""
try:
data = urllib.urlopen(url)
size = 0
except:
print ('An improperly formatted or non-existent URL')
exit()
while True:
info = info + data.read(512) #read 512 data package
if len(info)<1: break
if len(info) >= 3000: break
print len(info[:3000])answered Nov 12 at 17:29
Alice
12
add a comment |
0
import urllib
url = raw_input('Enter an URL: ')
info = ""
try:
data = urllib.urlopen(url)
size = 0
except:
print ('An improperly formatted or non-existent URL')
exit()
while True:
info = info + data.read(512) #read 512 data package
if len(info)<1: break
if len(info) >= 3000: break
print len(info[:3000])answered Nov 12 at 17:29
Alice
12
add a comment |
0
0
0
import urllib
url = raw_input('Enter an URL: ')
info = ""
try:
data = urllib.urlopen(url)
size = 0
except:
print ('An improperly formatted or non-existent URL')
exit()
while True:
info = info + data.read(512) #read 512 data package
if len(info)<1: break
if len(info) >= 3000: break
print len(info[:3000])answered Nov 12 at 17:29
Alice
12
import urllib
url = raw_input('Enter an URL: ')
info = ""
try:
data = urllib.urlopen(url)
size = 0
except:
print ('An improperly formatted or non-existent URL')
exit()
while True:
info = info + data.read(512) #read 512 data package
if len(info)<1: break
if len(info) >= 3000: break
print len(info[:3000])import urllib
url = raw_input('Enter an URL: ')
info = ""
try:
data = urllib.urlopen(url)
size = 0
except:
print ('An improperly formatted or non-existent URL')
exit()
while True:
info = info + data.read(512) #read 512 data package
if len(info)<1: break
if len(info) >= 3000: break
print len(info[:3000])import urllib
url = raw_input('Enter an URL: ')
info = ""
try:
data = urllib.urlopen(url)
size = 0
except:
print ('An improperly formatted or non-existent URL')
exit()
while True:
info = info + data.read(512) #read 512 data package
if len(info)<1: break
if len(info) >= 3000: break
print len(info[:3000])answered Nov 12 at 17:29
Alice
12
answered Nov 12 at 17:29
Alice
12
answered Nov 12 at 17:29
Alice
12
answered Nov 12 at 17:29
Alice
12
12
add a comment |
add a comment |
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The simplest way would be to print one character at a time, counting each character as you print it, and stop when that counter reaches 3000.
– John Gordon
Nov 11 at 17:56
What you want to do, is instead of just abruptly breaking when you cross 3000, you just need to get the characters needed to hit 3000, and then break. i should also mention, you can always just open the entire url in one go, and slice the string till 3000 characters.
– Paritosh Singh
Nov 11 at 18:01
it makes sense to use a slice method. However, even if I open the entire url, I cannot slice a string info till 3000 chars. Have no idea, why the output is blank (I added print info[0:3000] right after the code) Any ideas?
– Alice
Nov 11 at 20:41
Prof told us to use 512 characters for a single data package. I can't change that number.
– Alice
Nov 12 at 3:05