Develop Reference

TypeError: unsupported format string passed to bytes.__format__

Hi I'm trying to print an sqlite file to a readable format. I'm using dionea honeynet's python script. I encounter this error every time I run the script:
File "./readlogsqltree.py", line 268, in print_logins
login['login_password']))
TypeError: unsupported format string passed to bytes.__format__
The login['login_password'] is a variable taken from a select statement. Here is the function that is being called:
def print_logins(cursor, connection, indent):
r = cursor.execute("""
SELECT
login_username,
login_password
FROM
logins
WHERE connection = ?""", (connection, ))
logins = resolve_result(r)
for login in logins:
print("{:s} login - user:'{:s}' password:'{:s}'".format(
' ' * indent,
login['login_username'],
login['login_password']))
Resolve result function:
def resolve_result(resultcursor):
names = [resultcursor.description[x][0] for x in range(len(resultcursor.description))]
resolvedresult = [ dict(zip(names, i)) for i in resultcursor]
return resolvedresult
Cursor:
def print_db(opts, args):
dbpath = 'logsql.sqlite'
if len(args) >= 1:
dbpath = args[0]
print("using database located at {0}".format(dbpath))
dbh = sqlite3.connect(dbpath)
cursor = dbh.cursor()

I was encountering this error when converting some python2 script to python3:
File "/home/user/Documents/projects/tf-booking/tensorflow-object-detection-example/object_detection_app/app.py", line 152, in encode_image
base64.b64encode(image_buffer.getvalue()))
TypeError: unsupported format string passed to bytes.__format__
Solution was to use base64.b64encode(image_buffer.getvalue()).decode() instead of base64.b64encode(image_buffer.getvalue()) as in this post.

For Python 3, decode the string using decode('utf-8') before calling format()

how i can send more than 2 arguments on telnet session in python?

I have two lists that have user name and password. I want to check which one is correct by iterating through two zipped lists but it isn't working.
Below is the traceback
Traceback (most recent call last):
File "C:\Users\mohamed\Downloads\second_PassWD_Test.py", line 27, in <module>
mme=tn.write(j,i)
TypeError: write() takes exactly 2 arguments (3 given)
Below is the code throwing the exception.
import telnetlib
import re
HOST = "192.168.1.1"
USER = ["admin\n","admin\n","admin"]
PASS = ["cpe#","1234"," "]
try:
tn = telnetlib.Telnet(HOST)
except:
print "Oops! there is a connection error"
frist_log = tn.read_until(":")
if "log" in frist_log:
while 1:
for i,j in zip(USER,PASS):
tn.write(j,i)
break

Telnet.write(buffer) only takes two arguments first is the telnet object and the other is a buffer to send to your session, hence your solution will throw an exception. One way to solve the problem is like a except script using the expect api and use a list of expected output as shown in example below
USER = ["admin\n","admin\n","admin"]
PASS = ["cpe#","1234"," "]
prompt = "#" ## or your system prompt
tn = telnetlib.Telnet(HOST)
first_log = tn.read_until(":")
for user,password in zip(USER,PASS):
try:
tn.write(user)
tn.expect([":"],timeout = 3) # 3 second timeout for password prompt
tn.write(password+"\n")
index,obj,string = tn.expect([":",prompt],timeout = 3)
found = string.find(prompt)
if found >= 0:
break # found the username password match break
###else continue for next user/password match
except:
print "exception",sys.exc_info()[0]

IndexError: list index out of range [python irc bot]

For my IRC bot when I try to use the `db addcol command I will get that Index error but I got no idea what is wrong with it.
#hook.command(adminonly=True, autohelp=False)
def db(inp,db=None):
split = inp.split(' ')
action = split[0]
if "init" in action:
result = db.execute("create table if not exists users(nick primary key, host, location, greeting, lastfm, fines, battlestation, desktop, horoscope, version)")
db.commit()
return result
elif "addcol" in action:
table = split[1]
col = split[2]
if table is not None and col is not None:
db.execute("ALTER TABLE {} ADD COLUMN {}".format(table,col))
db.commit
return "Added Column"
That is the command I am trying to execute and here is the error:
Unhandled exeption in thread started by <function run at 0xb70d6844
Traceback (most recent call last):
File "core/main.py", line 68, in run
out = func(input.inp, **kw)
File "plugins/core_admin_global.py", :ine 308, in db
col = split[2]
IndexError: list index out of range
You will find the whole code at my GIT repository.
Edit: This bot is just a little thing I have been playing around with while learning python so don't expect me to be too knowledgeable about this.
Yet another edit:
The command I am trying to add, just replace desktop with mom.
#hook.command(autohelp=False)
def desktop(inp, nick=None, conn=None, chan=None,db=None, notice=None):
"desktop http://url.to/desktop | # nick -- Shows a users Desktop."
if inp:
if "http" in inp:
database.set(db,'users','desktop',inp.strip(),'nick',nick)
notice("Saved your desktop.")
return
elif 'del' in inp:
database.set(db,'users','desktop','','nick',nick)
notice("Deleted your desktop.")
return
else:
if '#' in inp: nick = inp.split('#')[1].strip()
else: nick = inp.strip()
result = database.get(db,'users','desktop','nick',nick)
if result:
return '{}: {}'.format(nick,result)
else:
if not '#' in inp: notice(desktop.__doc__)
return 'No desktop saved for {}.'.format(nick)

Formatting a variable as a string

I am trying to create a Python program that will query a URL and produce a JSON file. I need to pass an argument in the end of the URL which comes from the SQL query.
I have imported the requests library.
I get an error message 'TypeError: float argument required, not str' when I am trying to pass argument in the URL.
There is only one column of result produced from the query:
id
2
3
4
Below is what I came up with:
import MySQLdb
import requests
con=MySQLdb.connect(host="localhost",user="test", passwd="test", db ="mfg")
cur = con.cursor()
select=("select id from tblMfg")
cur.execute(select)
result=cur.fetchall()
for i in result:
col =i[0]
col1=str(col)
url = 'http://appl.xyz.net:8080/app/content/pq/doQuery?solution=nd&path=&file=Test.nd&dataAccessId=1&paramid=%d' % col1
user = 'abc'
password ='testgo'
data = requests.get(url, auth=(user, password))
json_data=data.json()
print json_data

Leave creating parameters to the requests framework instead:
params = {'solution': 'nd', 'path': '', 'file': 'Test.nd', 'dataAccessId': '1',
'paramid': str(col[0])}
url = 'http://appl.xyz.net:8080/app/content/pq/doQuery'
user = 'abc'
password ='testgo'
data = requests.get(url, auth=(user, password), params=params)

The error message 'TypeError: float argument required, not str' also occurs when you try to format a string containing an (accidental) naked percent sign.
Example:
>>> print "fail 100% for serverid|%s| " % ("a")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: float argument required, not str
>>>
The "f" after the "100% " is interpreted as asking for a floating point argument, whereas it was simply my smudgefingers leaving off the second percent sign.
>>> print "fail 100%% for serverid|%s| " % ("a")
fail 100% for serverid|a|
>>>
works fine. If the word following the "100% " begins with d or o or s, you get slightly different error messages.
I was unlucky enough to have this happen several call layers inside a 2-nested try-except, so the error showed up a mile away from the line that caused it.

print ("float_value : %f , digit_value : %d , string_value : %s" % (3.4, 5, 'somestring'))
float_value : 3.400000 , digit_value : 5 , string_value : somestring

How to resolve DNS in Python?

I have a DNS script which allow users to resolve DNS names by typing website names on a Windows command prompt.
I have looked through several guides on the DNS resolve but my script can't still seem to resolve the names (www.google.com) or (google.com) to IP address.
The script outputs an error of
Traceback (most recent call last):
File "C:\python\main_menu.py", line 37, in ?
execfile('C:\python\showdns.py')
File "C:\python\showdns.py", line 3, in ?
x = input ("\nPlease enter a domain name that you wish to translate: ")
File "<string>", line 0, in ?
NameError: name 'google' is not defined
The code:
import socket
x = input ("\nPlease enter a domain name that you wish to translate: ")
print ("\n\nThe IP Address of the Domain Name is: "+socket.gethostbyname_ex(x))
x = raw_input("\nSelect enter to proceed back to Main Menu\n")
if x == '1':
execfile('C:\python\main_menu.py')
Please give advice on the codes. Thanks!

input() is the wrong function to use here. It actually evaluates the string that the user entered.
Also gethostbyname_ex returns more than just a string. So your print statement would also have failed.
In your case this code should work:
import socket
x = raw_input ("\nPlease enter a domain name that you wish to translate: ")
data = socket.gethostbyname_ex(x)
print ("\n\nThe IP Address of the Domain Name is: "+repr(data))
x = raw_input("\nSelect enter to proceed back to Main Menu\n")
if x == '1':
execfile('C:\python\main_menu.py')

#!/user/bin/env python
"""
Resolve the DNS/IP address of a given domain
data returned is in the format:
(name, aliaslist, addresslist)
#filename resolveDNS.py
#version 1.01 (python ver 2.7.3)
#author LoanWolffe
"""
import socket
def getIP(d):
"""
This method returns the first IP address string
that responds as the given domain name
"""
try:
data = socket.gethostbyname(d)
ip = repr(data)
return ip
except Exception:
# fail gracefully!
return False
#
def getIPx(d):
"""
This method returns an array containing
one or more IP address strings that respond
as the given domain name
"""
try:
data = socket.gethostbyname_ex(d)
ipx = repr(data[2])
return ipx
except Exception:
# fail gracefully!
return False
#
def getHost(ip):
"""
This method returns the 'True Host' name for a
given IP address
"""
try:
data = socket.gethostbyaddr(ip)
host = repr(data[0])
return host
except Exception:
# fail gracefully
return False
#
def getAlias(d):
"""
This method returns an array containing
a list of aliases for the given domain
"""
try:
data = socket.gethostbyname_ex(d)
alias = repr(data[1])
#print repr(data)
return alias
except Exception:
# fail gracefully
return False
#
# test it
x = raw_input("Domain name or IP address? > ")
a = getIP(x)
b = getIPx(x)
c = getHost(x)
d = getAlias(x)
print " IP ", a
print " IPx ", b
print " Host ", c
print " Alias ", d

Use raw_input instead of input.