aws lambda python tutorial

effect of improving code reusability. >>> y1 = lineconfig (1, 1) # defines the line y = x + 1 >>> p1 = y1 (2) # Calculates the y-coordinate, gets x=2 when Y1 value GT;G t;> print (p1) 3 >>> lstpoint = [Y1 (x) for x in range (3)] # Calculate y-coordinate list >>> print (lstpoint) [1 , 2, 3];>> y2 = lineconfig (4, 5) # defines the line y = 4x + 5 >>> p2 = y2 (x=2) # Calculates the y-coordinate, gets x=2 when Y2 value >> > Print (p2) "Def Line (x): return a*x + B return linedef Newcounter (i=0)

Tutorial on implementing a distributed process in a Python Program This article mainly introduces how to implement distributed processes in Python programs. It is very useful in multi-process programming. The sample code is based on Python2.x. For more information, see Process should be preferred in Thread and Process because Process is more stable and can be dis

Basic Python Tutorial (second edition) Learning Note function (Chapter 6th)To create a function:def function_name (params):BlockReturn valuesRecord function:def function_name (params):' NOTE ' #注释BlockReturn valuesfunction_name.__doc__Help (Function_name)Return # no value returnedPosition parameters and keyword parameters:Keyword parameter to provide the name of the parameter:def function_name (Name1=value1

Tutorial on using the Python built-in module collections This article describes how to use the Python built-in module collections. The sample code is based on Python2.x. For more information, see Collections is a collection module built in Python and provides many useful collection classes. Namedtuple We know that tupl

Disclaimer: Some of the code is directly copied from the Daniel Blog, has been marked the link.1 installation Future SpecialU ' c:\n ' ASCII 8-bit Unicode 16-bit2 lists and tuples'. Join (somelist), somelist must be a string sequencePop removal list last element pop (0) removes the firstX.reverse () list (reversed (x))y=x[:] (deep copy)List.sort (), List.sort (CMP) cancels the CMP parameter in python3.x, and does not support direct function to sort (). You can construct a sort function to pass t

Python basic Tutorial: How to Use Filter, pythonfilter Python Filter The built-in function filter () in Python is mainly used to filter sequences. Similar to map, filter () also receives a function and a sequence. Unlike map (), filter () applies the input function to each element in sequence, and then True or Fals

server is a good candidate for implementation cancellation, as this allows us to cancel the poetry download if it turns out that no one wants it (such as the client has closed the connection before we send the poem). Version 3.0 of the agent is located in twisted-server-4/ poetry-proxy.py, the deferred cancellation is realized. The change is first located in Poetryproxyprotocol:Class Poetryproxyprotocol (Protocol): def connectionmade (self): self.deferred = self.factory.service.get_ P

)For example, to sum a sequence, it can be implemented with reduce:def Add (x, y ): return x+y for in range (1,101)])Of course, the sum operation can be built directly into the Python function sum (), no need to use reduce.But if you convert the sequence [1,3,5,7,9] into an integer 13579,reduce it will come in handy:def f (x, y ): return x*10+yforif x%2!=0])13579This example is not very useful in itself, but if you consider that the string str i

This article mainly introduces the use of Python's built-in module collections tutorial, the sample code based on the python2.x version, the need for friends can refer to the Collections is a collection module built in Python that provides a number of useful collection classes. Namedtuple We know that tuple can represent invariant sets, for example, the two-dimensional coordinates of a point can be expre