python-3.x

问题 I am looking for a way to sync collections in MongoDB with Elastic Search (ES). The goal is to have MongoDB as a primary data source and use MongoDB as a full text search engine. (The business logic of my project is written in python). Several approaches are online available. Mongo-connect River plugin logstash-input-mongodb (logstash plugin) see similar question Transporter However, most of the suggestions are several years old and I could not find any solution that supports the current

问题 I'm currently trying to create a block user and send friend request command. However, I've hit a wall. It seems like the bot doesn't have permission or authorization to my account so it can't send friend requests or block users. How do I give it the permissions? Or maybe it isn't possible at all? Please let me know, I'd really appreciate it :> My current code for the commands is below: @client.command() async def unfriend(ctx, *, user: discord.User): await user.remove_friend() await ctx.send(

问题 I don't have strong Python & programming background, and currently I am stuck on plotting data/values which I acquired from csv stream. Currently, this is what I have to just print the values streamed from .csv (real-time data from sensor), which I acquired from here: def follow(thefile): thefile.seek(0,2) #file handling on the data stream while True: line = thefile.readline() if not line: time.sleep(0.1) continue yield line logfile = open("C:/Users/ra/Desktop/mon23.csv","r") loglines =

问题 let's say I have project |__ utilities | |__ foo.py | |__ boost_extensions | |__ myclass.cpp | |__ myclass.so | |__ someotherstuff | |__ bar.py | |__ mylib.py | |__ __main__.py Is it possible to do something like this in main .py import .utilities.foo as Foo # this function will pass Foo to C++ and initialize it to a global variable initCppFunction(Foo) I've tried this but it gives me an invalid syntax error (I'm trying to do this due to some problems with importing python modules from boost

问题 I need to find the start and end date of the previous month from the current date. If the current date is 03-Feb-2021 The start date should be 01-Jan-2021 and the end date should be 31-Jan-2021 . how to achieve this as each month have a different number of days? Do we have any function in datetime to achieve this? 回答1: >>> from datetime import date, timedelta >>> this_first = date.today().replace(day=1) >>> prev_last = this_first - timedelta(days=1) >>> prev_first = prev_last.replace(day=1) >

问题 I'm trying to compile python script to exe. My script - hello.py : print("hello") My setup.py : from distutils.core import setup import py2exe, sys, os sys.argv.append('py2exe') setup( name = 'hello', description = 'hello script', version = '1.0', options = {'py2exe': {'bundle_files': 1, 'compressed': True,'dist_dir': ".",'dll_excludes':['w9xpopen.exe']}}, console = [{'script': r"hello.py"}], zipfile = None, ) I run: py -3 setup.py install The error: py -3 setup.py install running install

问题 I have answered my own question - see answer below I'm writing a class, and I want this behavior: a = f(10,20) some_funct(a.row) # some_function is given 10 some_funct(a.col) # some_function is given 20 some_funct(a) # some_function is given a tuple of 10, 20 <-- THIS ONE :) The last behavior is stumping me. I have not seen any examples that cover this. Thus far: class f(object): """Simple 2d object""" row: int col: int def __init__(self, row, col): self.row = row self.col = col Explictly I

问题 def subarraySum(self, nums: List[int], k: int) -> int: count = 0 target = k self.cal(nums,target,count,k) return count def cal(nums,target, count,k): if target == 0: count = count+1 target = k return count,target if target<0: return for i in range(len(nums)): self.cal(nums[:i]+nums[i+1:],target-nums[i],count,k) ''' here when the target < 0 i want to break the loop and for example if there is array 1,2,3 and my target is 2 i will go to the loop first add 1 next again add 2 which is not

问题 def subarraySum(self, nums: List[int], k: int) -> int: count = 0 target = k self.cal(nums,target,count,k) return count def cal(nums,target, count,k): if target == 0: count = count+1 target = k return count,target if target<0: return for i in range(len(nums)): self.cal(nums[:i]+nums[i+1:],target-nums[i],count,k) ''' here when the target < 0 i want to break the loop and for example if there is array 1,2,3 and my target is 2 i will go to the loop first add 1 next again add 2 which is not

问题 I have answered my own question - see answer below I'm writing a class, and I want this behavior: a = f(10,20) some_funct(a.row) # some_function is given 10 some_funct(a.col) # some_function is given 20 some_funct(a) # some_function is given a tuple of 10, 20 <-- THIS ONE :) The last behavior is stumping me. I have not seen any examples that cover this. Thus far: class f(object): """Simple 2d object""" row: int col: int def __init__(self, row, col): self.row = row self.col = col Explictly I