Tag Archives: pycharm

Python installs virtualenv through PIP and always reports an error: response.py“, line 438, in _error_catcher yield 

G:\ESP32\esp-idf-release-v4.3>pip install virtualenv
Collecting virtualenv
  Downloading virtualenv-20.7.2-py2.py3-none-any.whl (5.3 MB)
     |█                               | 174 kB 4.5 kB/s eta 0:18:56ERROR: Exception:
Traceback (most recent call last):
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\urllib3\response.py", line 438, in _error_catcher
    yield
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\urllib3\response.py", line 519, in read
    data = self._fp.read(amt) if not fp_closed else b""
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 62, in read
    data = self.__fp.read(amt)
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\http\client.py", line 459, in read
    n = self.readinto(b)
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\http\client.py", line 503, in readinto
    n = self.fp.readinto(b)
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\socket.py", line 704, in readinto
    return self._sock.recv_into(b)
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\ssl.py", line 1241, in recv_into
    return self.read(nbytes, buffer)
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\ssl.py", line 1099, in read
    return self._sslobj.read(len, buffer)
socket.timeout: The read operation timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\cli\base_command.py", line 173, in _main
    status = self.run(options, args)
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\cli\req_command.py", line 203, in wrapper
    return func(self, options, args)
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\commands\install.py", line 315, in run
    requirement_set = resolver.resolve(
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\resolver.py", line 94, in resolve
    result = self._result = resolver.resolve(
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 472, in resolve
    state = resolution.resolve(requirements, max_rounds=max_rounds)
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 341, in resolve
    self._add_to_criteria(self.state.criteria, r, parent=None)
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\resolvelib\resolvers.py", line 172, in _add_to_criteria
    if not criterion.candidates:
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\resolvelib\structs.py", line 151, in __bool__
    return bool(self._sequence)
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 140, in __bool__
    return any(self)
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 128, in <genexpr>
    return (c for c in iterator if id(c) not in self._incompatible_ids)
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\found_candidates.py", line 32, in _iter_built
    candidate = func()
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\factory.py", line 204, in _make_candidate_from_link
    self._link_candidate_cache[link] = LinkCandidate(
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 295, in __init__
    super().__init__(
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 156, in __init__
    self.dist = self._prepare()
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 227, in _prepare
    dist = self._prepare_distribution()
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 305, in _prepare_distribution
    return self._factory.preparer.prepare_linked_requirement(
  File "g:\users\administrator\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\operations\prepare.py", line 508, in prepare_linked_requirement
    return self._prepare_linked_requirement(req, parallel

Later, add the path of Python to the system variable

Pychart: How to Solve myspyder.items import myitem Error

Problem description

In items. Py , customize the item method.

# Define here the models for your scraped items
#
# See documentation in:
# https://docs.scrapy.org/en/latest/topics/items.html

import scrapy

class MyspiderItem(scrapy.Item):
    # define the fields for your item here like:
    name = scrapy.Field()
    title = scrapy.Field()
    desc = scrapy.Field()
    RD_achievements = scrapy.Field()

We need to introduce this method into the sweep, which is the item method defined by ourselves in the sweep, but we need to reference it in the spider in the sweep, so we need to add a string of code to change our introduction method.

Error reported in pychart from myspyder.items import itcastitem :

Original import method:

import scrapy
from crawlAdvanced.myspider.myspider.items import MyspiderItem
"""
 scrapy crawl itcast --nolog
"""

from crawlAdvanced.myspider.myspider.items import MyspiderItem ModuleNotFoundError: No module named 'crawlAdvanced'

Solution 1

Change from myspider.items import myitem to from.. items import myitem

In a package, peers use . and parents use ..

Maybe the computer doesn’t know which file you’re talking about. After all, the two file names are the same（ I don’t understand. I hope the boss can correct it!)

scrapy startproject mySpider

scrapy crawl mySpider

scrapy crawl mySpider -o teachers.json

Solution 2

If the error is still reported, you can refer to the following methods: (my error is solved by using the above method)

# -*- coding: utf-8 -*-
 
#The original python method of introducing scrapy class is wrong, please reintroduce it with this method
from __future__ import absolute_import
# is the above code
 
import scrapy
 
from selenium import webdriver
from  scrapy_splash import SplashMiddleware
from scrapy_splash import SplashRequest
import pymysql
from ..item360 import Jc360Item

Error reporting: attributeerror: module ‘******* has no attribute’ ******* and other problems are solved

Error reported:

resolvent:

1、 Install the third-party library directly on the command page

pip install xxxxxx

  2、 Select interpreter setting in the lower left corner of pychart, click the plus sign, enter the name of the third-party library, and then click Install pakage in the lower left corner to install.

  3、 The 2. X version of tensorflow does not support many third-party libraries. I have tried many methods, but I still think it is the most direct and effective (simple and crude) to install the 1. X version directly. Correspondingly, you may need to downgrade numpy because the installed tensorflow version and numpy version do not match.

Uninstall tensorflow first:

pip uninstall tensorflow

  To install a new version:

pip install tensorflow1.xx

  Check the applicable version of pycharm, and then install:  

pip install tensorflow==1.14 -i https://pypi.douban.com/simple

  After running the code, an error is reported indicating that the numpy version does not match:

For example, I report an error: futurewarning: passing (type, 1) or ‘1type’ as a synonym of type is deprecated; in a future version of numpy, it will be understood as (type, (1,))/'(1,)type’.  _ np_ qint32 = np.dtype([(“qint32”, np.int32, 1)])

Recommended installation: or other version

pip install numpy==1.16.0

  Normal operation after.

Pychar reported an error. Unable to set the python SDK in Python 3.8. This SDK appears to be invalid.

Problem Description:

After switching a new project, the installation of pyGame package fails and prompts that you cannot
install pyGame in Python 3.8 (py)_ xiaoxiaole) (E:\homestead\py_ Xiaoxiaole/venv/scripts/python. Exe) to set up the python SDK
this SDK appears to be invalid.



Solution:

py_ Xiaoxiaole this project has just been deleted. I don’t know why this interpreter is selected by default first set up the Python interpreter

Select all to display
select the above Python SDK. If it is not available, a new one can be added

when there is an available Python SDK

the pyGame package is successfully installed again and the invalid Python SDK is deleted.

[Solved] From pip._internal import cmdoptions ImportError: cannot import name SourceDistribution

Background of the problem

When changing 32-bit Python to 64 bit, this problem suddenly appeared. I was so confused that PIP list PIP install couldn’t be used. I made a mistake

Solution:
first execute the command: Python - M ensurepip -- default PIP
Download get-pip.py at https://bootstrap.pypa.io/get-pip.py After entering, it is directly code, so you need to create a new get-pip.py file, copy and paste it, and finally enter the directory where the get-pip.py file is located from the command line CMD, Execute command: Python get pip. Py
note that permission error may be reported when executing this step. At this time, Python get pip. Py -- user should be executed
Let’s go on

How to enter the directory where the get-pip.py file is located, you can follow the steps below in general windows

      1. search for CMD in the lower left corner, enter the drive letter where the file is located, for example, my get pip.py file is in

D: , then enter CMD, enter D: and then copy the directory of the file, paste enter, my file is D: + enter
Postscript

After checking, it seems to say that PIP version 20. Has this problem, but PIP version 21. Is gone. Maybe there is a bug in the previous version

[Solved] Plugin requires missing class loader for ‘Python‘

plugin requires missing class loader for ‘Python’

Original Cause Solution

Original cause

Remove the original pycharm on linux, reinstall tar.zip, and run pycharm.sh in the bin directory and get an error

solve

The reason for this is that there are residual files left over when removing pycharm.
After deleting the ~/.local/share/JetBrains and ~/.cache/JetBrains folders, re-run pycharm.sh and you're good to go.

Run with Python console solution is set by default for all projects in pcharm

I like interactive programming. After the PY file is running, I can directly enter the variable name and view the variable value without entering the print function to print the variable or enter some small commands, So I think Python console is at least better than “rigid” console.
1. Run edit configurations

2. Click “wrench”

3. Check “run with Python console” and then click “OK”
4. Create a new project new Python file, Only new project is the default setting)

if you don’t like Python console constantly creating new tabs every time you run, you can set the following
5. File settings

6. Check the red box “√” in build, execution and deployment console

Solution: pychar opens internal error

Forebay:

Open pychar software help – & gt; Edit custom VM options… File, open pycharm64.exe.vmoptions file, add

– javaagent:C :\Program Files\JetBrains\PyCharm2019.3.4\bin\JetbrainsCrack-release-enc.jar

Close the software and re open it to report an internal error

resolvent:

You can open the. Pycharm2019.3 folder (the version you downloaded) and delete it

PS: let’s take a look at the problem that win10 pychar can’t open and double-click no response

Pychar still can’t be opened. Enter the CMD as an administrator, enter the following command, and restart the computer;

netsh winsock reset

In the search box of the computer, enter windows power shell

Restart the computer, and then open pychar software, you can work normally

 

[Git] git pull pull remote git push to remote git commit submit reject

The GIT command has been introduced in previous blog posts. But for some scenes, it is still a little strange to use
git command git introduction and common command list

[scenario 1] pull the remote git warehouse branch to the local (this branch does not exist locally)

# recommand method
git fetch
# git checkout Remote branch name (dev is the example branch name)
git checkout dev
git pull

# other method (Not recommand)
git fetch
# git checkout -blocal branch name origin/remote branch name # actually associates the remote branch to the local branch
git checkout -b dev origin/dev
git pull

git push

[scenario 2] push the newly created local branch to the remote git warehouse
[scenario 3] solve [remote rejected] intg/dev – & gt; Intg/dev (hook declined) problem

# Check out the new local branch. The contents of the new branch are identical to the contents of the previous branch. When it is created, it will automatically switch to the new branch
git checkout -b new branch name
# [Suggestions] After modifying or creating a new file, it is recommended that you run the following two lines before committing
# Execute the command to resolve the [remote rejected] intg/dev -> intg/dev (hook declined) issue
git stash
git pull --rebase
git commit -m "comments in quotes for commit"
git push --set-upstream origin branch name

Pychar install paddlex error Microsoft Visual C ++ fourteen . 0 is required

Microsoft Visual C + + 14.0 is required

Solution 1

Install Microsoft Visual C + + build tools
directly by default. After the installation, install paddlex in pychar, and no error will be reported

Solution 2

After installing with PIP command, import pychar
and open pychar’s view – & gt; tool windows – & gt; Terminal (or use the shortcut key Alt + F12)
in the command window, enter PIP install padding
PIP command. By default, it is installed in the directory of Python's site packages (for example, my file is f:: (Python), 3.7.7-64, lib, site packages)
copy these files in the directory to pychar's external directory In site packages under libraries, you can import paddlex to use