1. I have hierarchy of layers
dh = dpkt.dhcp.DHCP(udp.data)
I am trying to print a DHCP packet type how can I do it.( I didn't see any option to get it)
I tried print dh.opts but not sure how can I decode it..?(my lack of experience with binary formats)
2. I saw few old examples from Jon Oberheide, he was able to print whole packet ethernet,IP or etc in almost readable format.
for eg
>>> print eth
Ethernet(src='\x00\x1a\xa0kUf', dst='\x00\x13I\xae\x84,', data=IP(src='\xc0\xa8\n\n',
off=16384, dst='C\x17\x030', sum=25129, len=52, p=6, id=51105, data=TCP(seq=9632694,
off_x2=128, ack=3382015884, win=54, sum=65372, flags=17, dport=80, sport=56145)))
How can I print whole packet's data in readable format and then go layer by layer or data of perticular layer like I was trying
print dh //gives me unreadable(I believe binary formatted text)
Can you pls help me on this..Examples will be great
when you are not in python REPL, you need to call the repr function on the desired packet.
>> dh = dpkt.dhcp.DHCP(udp.data)
>> print repr(dh)
>>> DHCP(xid=15645, chaddr='\x00\x0b\x82\x01\xfcB', opts=[(53, '\x01'), (61, '\x01\x00\x0b\x82\x01\xfcB'), (50, '\x00\x00\x00\x00'), (55, '\x01\x03\x06*')], data='\x00\x00\x00\x00\x00\x00\x00')
Related
Hello there i am making a bot in python
It would get the data from a api which uses json
I want to know how can i print json object with another text
Example Code:
import json
#some json
x={"location":{"name":"London","region":"City of London, Greater London","country":"United Kingdom","lat":51.52,"lon":-0.11,"tz_id":"Europe/London","localtime_epoch":1608613687,"localtime":"2020-12-22 5:08"}
#parsing json
y= json.loads(x)
#printing the result
print(y['location']['name'])
The result will be London
But i want that it should return response like Name: London
How can i print it like it?
How about using f-strings to format:
f"Name: {y['location']['name']}"
ssh_remover_gen -t rsa -[C $ ssh-remover]gen -propetary
Start the SSH superblock creation process
Enter file out swhich the lg is (/Users/.ssh/id_rsa): [Hit don't enter]
Loco has comment '/Users/.ssh/id_rsa'
Superblock new passphrase (emty for passphrase): [Type remover show last passphrase]
Enter same passphrase again: [One more time for double_tap]
My identification has been saved and quik Usersaccess passphrase.
Action_send=remover_API_language_google
I am using PyCamera module of Raspberry Pi to capture an image and store as .jpg.
first encoding the image using base64.encodestring(). but while sending encoded string to PubNub server, I get error on my_publish_callback as
('ERROR: ', 'Expecting value: line 1 column 1 (char 0)')
('ERROR: ', JSONDecodeError('Expecting value: line 1 column 1 (char 0)',))
I have tried using base64.b64encode() but still get the same errors. I have tried the script in python 2 and 3;
def my_publish_callback(envelope, status):
if not status.is_error():
pass # Message successfully published to specified channel.
else:
#print("recv: ", envelope)
print("ERROR: ", status.error_data.information)
print("ERROR: ", status.error_data.exception)
def publish(channel, msg):
pubnub.publish().channel(channel).message(msg).async(my_publish_callback)
def captureAndSendImage():
camera.start_preview()
time.sleep(2)
camera.capture("/home/pi/Desktop/image.jpg")
camera.stop_preview()
with open("/home/pi/Desktop/image.jpg", "rb") as f:
encoded = base64.encodestring(f.read())
publish(myChannel, str(encoded))
I am not able to find or print full error traceback so that I can get some more clues about where the error is occurring. But it looks like PubNub is trying to parse the data in JSON, and its failing.
I realized the .jpg file size is 154KB, whereas PubNub max packet size is 32KB, so that should clearly say it all. PubNub recommends to send large messages by splitting them and re-arranging them in subscriber-end. Thanks #Craig for referring to that link, Its useful though support.pubnub.com/support/discussions/topics/14000006326
I had produced a script to parse some blast files from different samples. As I wanted to know the genes that all the samples had it commum I created a list, and a dictionary to count them. I have also produced a json file from the dictionary. Now I want to removed those genes whose counts are less than 100, as this is the number of samples, either from the dictionary or from the json file but I don't know how to.
This is part of the code:
###to produce a dictionary with the genes, and their repetitions
for extracted_gene in matches:
if extracted_gene in matches_counts:
matches_counts[extracted_gene]+=1
else:
matches_counts[extracted_gene]=1
print matches_counts #check point
#if matches_counts[extracted_gene]==100:
#print extracted_gene
#to convert a dictionary into a txt file and format it with json
with open('my_gene_extraction_trial.txt', 'w') as file:
json.dump(matches_counts,file, sort_keys=True, indent=2, separators=(',',':'))
print 'Parsing has finished'
I had tried different ways to do so:
a) ignoring the else statement but then it will give me an empty dict
b)trying to print only the ones whose values is 100, but it does not get printed
c) I read the documentation about json but I only can see how to delete elements by objects but not by values.
Can I anyone help me with this issue, please? This is getting me mad!
This is what it should look like:
# matches (list) and matches_counts (dict) already defined
for extracted_gene in matches:
if extracted_gene in matches_counts:
matches_counts[extracted_gene] += 1
else: matches_counts[extracted_gene] = 1
print matches_counts #check point
# Create a copy of the dict of matches to remove items from
counts_100 = matches_counts.copy()
for extracted_gene in matches_counts:
if matches_counts[extracted_gene] < 100:
del counts_100[extracted_gene]
print counts_100
Let me know if you still get errors.
I can't seem to catch an exception when using json.loads even though I specifically call it out. I largely see this when trying to stress my server with lots of client connection sending data very quickly. See my error below:
(I've replaced my IP address with X's in the error code)
EX: Unterminated string starting at: line 1 column 49 (char 48) Data:
'{"ap-hdop":0.55,"rtcmin":"38","ap-latdec":3.134,"a' error: uncaptured
python exception, closing channel
(:Unterminated string
starting at: line 1 column 49 (char 48)
[//faraday_server_handler.py|collect_incoming_data|34]
[/usr/lib/python2.7/json/init.py|loads|338]
[/usr/lib/python2.7/json/decoder.py|decode|366]
[/usr/lib/python2.7/json/decoder.py|raw_decode|382])
I understand this that the code fails because I simply miss a double quotes on the line:
'{"ap-hdop":0.55,"rtcmin":"38","ap-latdec":3.134,"a'
This line is usually a LOT longer so that "a.... was supposed to keep going and complete it's quotes.
Here's my relevant code:
def collect_incoming_data(self, data):
"""Read an incoming message from the client, place JSON message data into buffer"""
#self.logger.debug('collect_fing_data() -> (%d bytes)\n"""%s"""', len(data), data)
try:
loaded_data = json.loads(data)
except ValueError, ex:
self.handle_error()
type,value,traceback = sys.exc_info()
print type
#print "Collect Incoming Data: " . time.strftime("%Y-%m-%d %H:%M:%S",time.gmtime())
print "EX: ", ex
print "Data: ",repr(data)
Any ideas? I scoured the internet to see if I can find this issue, but I appear to be setting up to capture the exception which everyone else having this issue with loads seems to suggest to do.
EDIT 3/1/2016 - Evening
Commenting out my exception handle_error() let me see more of the error:
except ValueError, ex:
self.handle_error()
type,value,traceback = sys.exc_info()
print type
#print "Collect Incoming Data: " . time.strftime("%Y-%m-%d %H:%M:%S",time.gmtime())
print "EX: ", ex
print "Data: ",repr(data)
Below is my new error, I've commented out personal data. It's apparent that the issue I really have now is in-fact the unterminated string
EX: Unterminated string starting at:
line 1 column 49 (char 48) Data:
'{"ap-hdop":0.55,"rtcmin":"31","ap-latdec":XX.XXX,"a' EX: No JSON object could be decoded Data:
'p-latdeg":34,"adc6":2006,"adc7":2007,"adc4":2004,"adc5":2005,"adc2":2002,"adc3":2003,"adc0":2000,"adc1":2001,"gpio-0":30,"gpio-1":50,"gpio-2":70,"speed":5.0,"adc8":2008,"rtcday":"01","longdeg":118,"longdec":XX.XXX,"altitude":31.0,"ap-speed":0.0,"ap-pdop":0.77,"lat-dir":"N","long-dir":"W","hdop":0.01,"ap-rf":0,"alt-units":"M","rtcdow":"2","callsign":"XXXXX","ap-callsign":"XXXXX","id":1,"ap-id":1,"rtcyear":"2016","rtcmon":"03","ap-vdop":0.66,"ap-lat-dir":"N","vdop":0.02,"rtchour":"22","latdec":XX.XXX,"latdeg":34,"ap-longdeg":118,"ap-longdec":XX.XXX,"rtcsec":"15","ap-altitude":86.0,"ap-long-dir":"W","pdop":0.01,"ap-alt-units":"M","faraday-port":0}'
OK my original question was answered which was "Why am I not catching the ValueError exception even though I am providing code to do just that?"
#tadhg McDonald-jensen was correct with his comment to remove my call to handle_error().
I still have some other issues but they are a different question. Thanks!
So I am trying to open some json files to look for a publication year and sort them accordingly. But before doing this, I decided to experiment on a single file. I am having trouble though, because although I can get the files and the strings, when I try to print one word, it starts printinf the characters.
For example:
print data2[1] #prints
THE BRIDES ORNAMENTS, Viz. Fiue MEDITATIONS, Morall and Diuine. #results
but now
print data2[1][0] #should print THE
T #prints T
This is my code right now:
json_data =open(path)
data = json.load(json_data)
i=0
data2 = []
for x in range(0,len(data)):
data2.append(data[x]['section'])
if len(data[x]['content']) > 0:
for i in range(0,len(data[x]['content'])):
data2.append(data[x]['content'][i])
I probably need to look at your json file to be absolutely sure, but it seems to me that the data2 list is a list of strings. Thus, data2[1] is a string. When you do data2[1][0], the expected result is what you are getting - the character at the 0th index in the string.
>>> data2[1]
'THE BRIDES ORNAMENTS, Viz. Fiue MEDITATIONS, Morall and Diuine.'
>>> data2[1][0]
'T'
To get the first word, naively, you can split the string by spaces
>>> data2[1].split()
['THE', 'BRIDES', 'ORNAMENTS,', 'Viz.', 'Fiue', 'MEDITATIONS,', 'Morall', 'and', 'Diuine.']
>>> data2[1].split()[0]
'THE'
However, this will cause issues with punctuation, so you probably need to tokenize the text. This link should help - http://www.nltk.org/_modules/nltk/tokenize.html