Concatenation of tuples

2024/7/4 17:07:19
  1. Normal text:

    • I'm having some problems with coding on python 3.2.1. Actually I'm taking online lectures that are on python 2.5.
  2. Here is the code:

    x = 100
    divisors = ()
    for i in range(1,x):if x%i == 0:divisors = divisors + (i)
    
  3. on running the program, following error appears:

    divisors = divisors + (i)  
    TypeError: can only concatenate tuple (not "int") to tuple
    
Answer

(1) is not a tuple, its just a parenthesized expression. To make it a tuple, add a trailing comma, (1,)

https://en.xdnf.cn/q/73364.html

Related Q&A

How do I create a new data table in Orange?

I am using Orange (in Python) for some data mining tasks. More specifically, for clustering. Although I have gone through the tutorial and read most of the documentation, I still have a problem. All th…

How to turn off MySQL query cache while using SQLAlchemy?

I am working with a fairly large MySQL database via the SQLAlchemy library, and Id love to turn off MySQLs query caching to debug performance issues on a per-session basis. Its difficult to debug slow …

Storing an inverted index

I am working on a project on Info Retrieval. I have made a Full Inverted Index using Hadoop/Python. Hadoop outputs the index as (word,documentlist) pairs which are written on the file. For a quick acc…

How to determine whether java is installed on a system through python?

Using Python, I want to know whether Java is installed.

How should I save the model of PyTorch if I want it loadable by OpenCV dnn module

I train a simple classification model by PyTorch and load it by opencv3.3, but it throw exception and sayOpenCV Error: The function/feature is not implemented (Unsupported Lua type) in readObject, file…

Apache Spark ALS - how to perform Live Recommendations / fold-in anonym user

I am using Apache Spark (Pyspark API for Python) ALS MLLIB to develop a service that performs live recommendations for anonym users (users not in the training set) in my site. In my usecase I train th…

python JIRA connection with proxy

Im trying to connect via python-jira using a proxy:server = {"server": "https://ip:port/jira",proxies: {"http": "http://ip:port", "https": "http:/…

How can I iterate over only the first variable of a tuple

In python, when you have a list of tuples, you can iterate over them. For example when you have 3d points then:for x,y,z in points:pass# do something with x y or zWhat if you only want to use the first…

Bottle with Gunicorn

What is the difference between running bottle script like thisfrom bottle import route, run@route(/) def index():return Hello!run(server=gunicorn, host=0.0.0.0, port=8080)with command python app.py and…

Run several python programs at the same time

I have python script run.py:def do(i):# doing something with i, that takes timestart_i = sys.argv[1] end_i = sys.argv[2] for i in range(start_i, end_i):do(i)Then I run this script:python run.py 0 10000…