Recent questions tagged Python

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python - ast.literal_eval: SyntaxError: unexpected EOF while parsing

When trying to parse an empty string I get a SyntaxError. Why does it raise a different error than ... : unexpected EOF while parsing See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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792 views

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python - Generate a set of sorted random numbers from a specific range

I'd like to generate a set of x unique random numbers and sort them in Python. For example: range(1000, 10000) ... ? And how should I sort them? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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925 views

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python - AssertionError: 22 columns passed, passed data had 21 columns

This is my code: from urllib import urlopen from bs4 import BeautifulSoup import pandas as pd url = "http://www. ... to occur in the last line. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - inner join/merge in pandas dataframe give more rows than left dataframe

Here are how the dataframes columns look like. df1='device number', 'date', ....<<10 other columns>> 3500 ... I achieve the result I described? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python 3.x - Hash each row of pandas dataframe column using apply

I'm trying to hash each value of a python 3.6 pandas dataframe column with the following algorithm on the ... answers! Many thanks in advance! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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428 views

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python - Install package which has setup_requires from local source distributions

Take the following trivial package which contains setup_requires: from setuptools import setup setup(name='my_package', ... to a reproduction. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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632 views

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python - web scraping an ajax website using BeautifulSoup

I am trying to scrape e-commerce site that uses ajax call to load its next pages. I am able to scrape ... solution to scrape the remaining data. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to find the correlation between a group of values in a pandas dataframe column

I have a dataframe df: ID Var1 Var2 1 1.2 4 1 2.1 6 1 3.0 7 2 1.3 8 2 2.1 9 2 3.2 ... Must make sure all columns of variables are int or float See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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642 views

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python - How to create type hinting for a generic factory method?

How can type hints be declared to indicate that a function returns an instance of the class reference that ... Inferred type should be MyClass See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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651 views

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python - Django: django-tables2 pagination and filtering

I have a working table generated by django-tables2: my_filter = TestFilter(request.POST) table = TestTable(TestObj. ... does not even load. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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455 views

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python - Firestore - Nested query

I'm really new to firebase and to be honest I find queries hard to write. I'm working on a script in ... what would be the query for that? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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469 views

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python - How to sort list of date object?

How to sort list of date object ? For example I have unsorted list of date objects. How to get max/min value from this list ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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435 views

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python - What is going on behind this numpy selection behavior?

Answering this question, some others and I were actually wrong by considering that the following would work: ... dimensions which causes this. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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437 views

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python - Usage of ObjectProperty class

I Just started to learn kivy and I am very confused on the usage of the ObjectProperty class, and how it takes ... : self.ball.velocity_x *= -1 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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python - Skip loop if a function is taking too long?

I have Python code which is taking too long, and I would like to stop and skip execution of this function if ... again if it crosses the timer. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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391 views

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python 2.7 - Django 1.9 Compiling Error

I created a virtualenv and downloaded Django with the below commands: virtualenv tester source tester/bin/activate pip ... bug fix to happen? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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474 views

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python - matplotlib not working anymore due to interactive issue

I was working with python and matplotlib but my script crashed so I had to turn off the terminal (Ubuntu 12.04, ... that work but it does not. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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712 views

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python - How to use tkinter slider `Scale` widget with discrete steps?

Is it possible to have a slider (Scale widget in tkinter) where the possible values that are displayed when manipulating ... hard get a view of. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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735 views

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python - Comparing numpy array of dtype object

My question is "why?:" aa[0] array([[405, 162, 414, 0, array([list([1, 9, 2]), 18, (405 ... other questions telling me this should work... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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903 views

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python - subprocess stdin buffer not flushing on newline with bufsize=1

I have two small python files, the first reads a line using input and then prints another line a = input() ... to not flush on the newline? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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458 views

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python - `py.test` and `__init__.py` files

I thought py.test is "standalone" in a sense that it treats test_*.py files "as it is", and only ... Hope this additional information will help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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577 views

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python - Load weights from checkpoint not working in keras model

I am going insane over this. I define a sequential model using tensorflow keras: model = tf.keras.Sequential([tf.keras ... float32)>: ['b/bias'] See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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629 views

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python - Bitwise operations in Pandas that return numbers rather than bools?

Question How can I perform bitwise operations in Pandas? How & works on integers On integers the & operator performs ... Name: data, dtype: bool See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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558 views

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python pandas: how to avoid chained assignment

I have a pandas dataframe with two columns: x and value. I want to find all the rows where x == 10, and ... 1000 # this doesn't work print df See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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482 views

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python - Airflow : ExternalTaskSensor doesn't trigger the task

I have already seen this and this questions on SO and made the changes accordingly. However, my dependent DAG still ... . Am I missing anything? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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462 views

1 answer

python - Using regular expression to comma separate a large number in south asian numbering system

I am trying to find a regular expression to comma separate a large number based on the south asian numbering system. A ... re.sub()). Any ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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978 views

1 answer

python - How to return plain text from flask endpoint? Needed by Prometheus

I need to setup a /metrics endpoint so that Prometheus can consume statistics about an endpoint. How do I go about ... do I need the mimetype? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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378 views

1 answer

python - How to open the option items of a select tag (dropdown) in different tabs/windows?

I'm trying to scrape this website using Python and Selenium, it requires you to select a date from drop-down box ... May 2018</option> </select> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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