Develop Reference

In python, how can I jump to a def?

I want to jump from def number1 to def number2.
I tried this:
def number1():
print("from here to ")
number2()
number1()
def blablabla():
print("blablabla")
blablabla()
def number2():
print("here")
number2()
but I received this error:
Traceback (most recent call last):
File "C:\Users\i5 9400f\Documents\projetos python\test.py", line 4, in <module>
number1()
File "C:\Users\i5 9400f\Documents\projetos python\test.py", line 3, in number1
number2()
^^^^^^^
NameError: name 'number2' is not defined. Did you mean: 'number1'?
from here to
Process finished with exit code 1
I tried using the number2()
it did not work

Python just run your code from top to bottom sequentially so if you try to access to something that is only defined later you won't succeed. What you need to do is to define all the functions first then call them later :
def number1():
print("from here to ")
number2()
def blablabla():
print("blablabla")
def number2():
print("here")
number1()
blablabla()
number2()

def number1():
print("from here to ")
number2()
def number2():
print("here")
def blablabla():
print("blablabla")
number1()
blablabla()
number2()
###Before runnıng def functıons, you should put them at the top of your processes

How to import a variable from another function and another class?

I'm trying but it's not working. I have the following code line:
class Run:
def Method(self, choice):
print "%sZip :\t%s%s\n".decode('utf-8') % (Basic_Green, White, choice.start().LoadJson['zip'])
And this is variable, and is within another class, and another function:
class Host_Method:
def start(self):
My_API = requests.get("http://ip-api.com/json/%s" % socket.gethostbyname(sys.argv[2]))
LoadJson = json.loads(My_API.content)
The error:
Traceback (most recent call last):
File "InfoIP.py", line 78, in <module>
elif sys.argv[1] == "-h": Run().Method(Host_Method())
File "/Pentest/InfoIP2/Libraries/InfoIP_Functions.py", line 159, in Method
print "%sZip :\t%s%s\n".decode('utf-8') % (Basic_Green, White, choice.LoadJson['zip'])
AttributeError: Host_Method instance has no attribute 'LoadJson'

You probably want them to be stored in an instance variable (self....). And you probably want your start to be an __init__ method. Your corrected class could look like:
class HostMethod:
def start(self):
self.my_API = requests.get("http://ip-api.com/json/{0}".format(socket.gethostbyname(sys.argv[2])))
self.load_json = json.loads(self.my_API.content)
Then, you could do:
class Run:
def Method(self, choice):
print "{0}Zip :\t{1}{2}\n".decode('utf-8').format(Basic_Green, White, choice.load_json['zip'])
a = Run()
a.method(HostMethod())
See also:
https://docs.python.org/3.4/tutorial/classes.html

Global variable is not defined

I'm trying to read a file with python, by posting the address in input line. In my plan, when I press the button, program will read the file, make all needed work with the text inside the first file, and write the result into a second one:
import Tkinter
class Generator(Tkinter.Tk):
def __init__(self,parent):
Tkinter.Tk.__init__(self,parent)
self.parent=parent
self.initialize()
def initialize(self):
self.grid()
self.addressLink = Tkinter.StringVar()
self.entry=Tkinter.Entry(self,textvariable=self.addressLink)
self.entry.grid(column=0,row=0,sticky='EW')
self.entry.bind("<Return>", self.OnPressEnter)
self.entry.bind(".", self.OnPressDot) # verify that address was accepted
self.addressLink.set(u"Enter your input file's address here!")
button=Tkinter.Button(self,text=u'Generate the list!',command=self.OnButtonClick)
button.grid(column=1,row=0)
self.labelVariable = Tkinter.StringVar()
label = Tkinter.Label(self, textvariable=self.labelVariable,
anchor="w",fg="white",bg="blue")
label.grid(column=0,row=1,columnspan=2,sticky='EW')
self.labelVariable.set(u"Enter Address !")
self.grid_columnconfigure(0,weight=1)
self.resizable(True,False)
def ProgramBody(readlink):
excelWrite=open('/Users/BUR/Desktop/final_TK.txt','w')
z=0
for index, line in enumerate(readlink, start=0):
keywrds=[]
title=line.split("+")
title=[lines.strip()for lines in title]
print title[0]
print index
header="Title"+"\t"+"Price equal to title:"+"\t"+"keyword1"+"\t"+"keyword2"+" \t"+"keyword3"+"\t"+"keyword4"+"\t"+"keyword5\t"+"Manufacturer Part Number\n"
exclWrt(header)
excelWrite.close()
def FileRead(tsink):
excelRead=open(tsink,'r')
print tsink
ProgramBody(tsink)
def OnButtonClick(self):
link=(self.addressLink.get())
# print link
self.labelVariable.set(link+" (Here is your button press!) ")
FileRead(link)
def OnPressEnter(self,event):
self.labelVariable.set(self.addressLink.get()+" (Here is your address!)")
def OnPressDot(self,event):
self.labelVariable.set(self.addressLink.get()+" (Here is your address!!!)")
if __name__=="__main__":
app=Generator(None)
app.title('Converter')
app.mainloop()
#excelRead=open('/Users/BUR/Desktop/listings/data.txt','r')
def exclWrt(typo):
excelWrite.write(typo)
Program runs, but when I press button it gives me:
> Exception in Tkinter callback Traceback (most recent call last):
> File
> "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk/Tkinter.py",
> line 1470, in __call__
> return self.func(*args) File "/Users/BUR/Documents/Python/Temp+price+keyw.1", line 114, in
> OnButtonClick
> FileRead(link) NameError: global name 'FileRead' is not defined
What did I miss?

You're using a class. First, you'll have an instance of the class passed to every function. Usually it's named self:
class A:
def something(self, my_arguments)
And, to call something from the class, you do this:
def something_else(self, another_arguments):
self.something(another_arguments)
The first argument will automatically be passed. Also, __init__ is called when you create an instance of your class, so you have no need of a separate initialize function.
I suggest you read more about classes here. This is just a very short solution for your problem.

python global error. It gives me at line 16 of my code. Where search is not defined why?

i have written down the code but it gives me an error. It gives the global error and says that it does not define the search. Please help me out guys.
def testSearch():
s = range(0,1000000)
raw_input('basic, -1')
print search(s,-1)
raw_input('binary, -1')
print search1(s,-1)
raw_input('basic, end')
print search(s,1000000)
raw_input('binary, end')
print search1(s,1000000)
s = range(0,10000000)
raw_input('basic, partway')
print search(s,1000000)
raw_input('basic, larger end')
print search(0,10000000)
>>> testSearch()
basic, -1
Traceback (most recent call last):
File "<pyshell#10>", line 1, in <module>
testSearch()
File "C:\Users\bangash\Documents\python files\lec8.py", line 17, in testSearch
print search(s,-1)
NameError: global name 'search' is not defined

So, where is your function search defined? You should define it as a function:
def search(a, b):
...

The function search has to be defined before the code in testSearch has been executed. The code in testSearch is executed when testSearch() is executed. So the following two will work
def search():
pass
def testSearch():
search()
testSearch()
or
def testSearch():
search()
def search():
pass
testSearch()
They both will work because, just before the testSearch() is executed, we got definition for search. But not this
def testSearch():
search()
testSearch()
def search():
pass

Class data attribute not being accessible in class method

I have written a small program that will print all the files and directories inside the path specified by me. The source code is:
import os
import glob
class FolderStats:
targetdir = ""
def __init__(self, dirpath = None):
targetdir = dirpath
totalfiles = 0
totalsubfolders = 0
def FolderIterator(self):
print self.targetdir
listing = os.listdir(self.targetdir)
for infile in listing:
print "current file is: %s" % (infile)
if __name__ == '__main__':
Obj = FolderStats(raw_input('Enter your path: '))
Obj.FolderIterator()
The above code is not executing. I am getting an error in the method FolderIterator: when the print command is executed, it prints nothing. <targetdir> no more contains the path supplied by me. Why is it so?

In your __init__ you need to use self.targetdir instead of targetdir
>>> class Test:
var = 1
def __init__(self):
var = 2
print self.var # Object variable
print var # Local variable
def func(self):
print self.var
print var # this will fail, because there's no local var in this scope
>>> a = Test()
1
2
>>> a.func()
1
Traceback (most recent call last):
File "<pyshell#12>", line 1, in <module>
a.func()
File "<pyshell#10>", line 9, in func
print var
NameError: global name 'var' is not defined