Unknown string ошибка - TopOshibok.ru - решение и исправление самых разных ошибок

I wrote a function that scrapes data from a website for multiple zip codes. The code works for most zip codes, but there are some where I’m getting an Unknown String Error.

Here is the code I’m using

import time
from datetime import date, timedelta
from bs4 import BeautifulSoup
import urllib2
from dateutil.parser import parse
import pandas as pd
import random
import os
url = 'https://www.sittercity.com/jobs/search?distance=50&&page=1&per_page=100000&search_strategy=babbysitting_job&&selected_facets%5Bnew_jobs%5D=true&sort=relevance&zipcode=94513'
soup = BeautifulSoup(urllib2.urlopen(url))
posts = [t.text for t in soup.find_all(class_ = "item posted-by")]
dates = [parse(item, fuzzy = True) for item in posts]

The error is coming from the 34th item in the posts list. However the datatype of each element in the list is the same, so I’m confused. Also the 33rd item in the list seems to work. For example:

This works:

dates_single = parse(posts[32], fuzzy = True)

But this doesn’t (?)

dates_single = parse(posts[33], fuzzy = True)

Here are the values of posts[32] and posts[33]

>>> posts[33]
u'Posted by April A. on 3/28/2016'
>>> posts[32]
u'Posted by Chandrika M. on 3/30/2016'

I read through the datetil.parser documentation and none of the «Unknown String Error» use cases seem to fit.

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Description

What steps will reproduce the problem?

i am trying to run my program when this unknow error occured
in file:- lib\xml\etree\ElementTree.py line 598 in parse
self._root = parser._parse_whole(source)
file:- «», line unknown
ParseError: not well-formed (invalid token): line 44, column 88

cant solve

Traceback

  File "D:\ana\a3\lib\site-packages\spyder\plugins\ipythonconsole.py", line 1686, in go_to_error
    self.edit_goto.emit(osp.abspath(fname), int(lnb), '')
ValueError: invalid literal for int() with base 10: ''

Versions

Spyder version: 3.3.4
Python version: 3.7.3
Qt version: 5.9.6
PyQt5 version: 5.9.2
Operating System: Windows 10

Dependencies

pyflakes >=0.6.0  :  2.0.0 (OK)
pycodestyle >=2.3 :  2.4.0 (OK)
pygments >=2.0    :  2.3.1 (OK)
sphinx >=0.6.6    :  1.8.2 (OK)
rope >=0.9.4      :  0.11.0 (OK)
jedi >=0.9.0      :  0.13.2 (OK)
nbconvert >=4.0   :  5.4.0 (OK)
pandas >=0.13.1   :  0.24.2 (OK)
numpy >=1.7       :  1.16.4 (OK)
sympy >=0.7.3     :  1.3 (OK)
cython >=0.21     :  0.29.2 (OK)
qtconsole >=4.2.0 :  4.3.1 (OK)
IPython >=4.0     :  7.5.0 (OK)
matplotlib >=2.0.0:  3.1.0 (OK)
pylint >=0.25     :  2.2.2 (OK)

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I wrote a function that scrapes data from a website for multiple zip codes. The code works for most zip codes, but there are some where I’m getting an Unknown String Error.

Here is the code I’m using

import time
from datetime import date, timedelta
from bs4 import BeautifulSoup
import urllib2
from dateutil.parser import parse
import pandas as pd
import random
import os
url = 'https://www.sittercity.com/jobs/search?distance=50&&page=1&per_page=100000&search_strategy=babbysitting_job&&selected_facets%5Bnew_jobs%5D=true&sort=relevance&zipcode=94513'
soup = BeautifulSoup(urllib2.urlopen(url))
posts = [t.text for t in soup.find_all(class_ = "item posted-by")]
dates = [parse(item, fuzzy = True) for item in posts]

The error is coming from the 34th item in the posts list. However the datatype of each element in the list is the same, so I’m confused. Also the 33rd item in the list seems to work. For example:

This works:

dates_single = parse(posts[32], fuzzy = True)

But this doesn’t (?)

dates_single = parse(posts[33], fuzzy = True)

Here are the values of posts[32] and posts[33]

>>> posts[33]
u'Posted by April A. on 3/28/2016'
>>> posts[32]
u'Posted by Chandrika M. on 3/30/2016'

I read through the datetil.parser documentation and none of the «Unknown String Error» use cases seem to fit.

import React from 'react';

/**
 * Translate static strings coming from the backend
 *
 * @param str: string with placeholders in the format "value is {{val: 5}}"
 * @param t: react-i18next t instance
 * @returns: translated string
 */
export default function staticTranslate(str, t) {
  if (str === undefined) {
      return str;
  }
  let substitutions = {};

  function replacer(match, p1, p2, offset, string) {
    substitutions[p1] = p2;
    return '{{' + p1 + '}}';
  }

  str = str.replace(/{{s?(w+):s?([^}]+)}}/g, replacer);
  return t(str, substitutions);
}

Your error occurs due to conflict between April (detected as month name) and 3 detected as month number.

Minimal example:

from dateutil.parser import parse
parse(u'Posted by Chandrika M. on 3/30/2016', fuzzy=True)  # datetime.datetime(2016, 3, 30, 0, 0)
parse(u'Posted by April A. on 3/28/2016', fuzzy=True)  # ValueError: Unknown string format
parse(u'Posted by XYZ A. on 3/28/2016')  #  datetime.datetime(2016, 3, 28, 0, 0)

Since your format is well-defined you may simply perform straightforward conversion, without any heuristics.

s = u'Posted by April A. on 3/28/2016'
datetime.datetime.strptime(s.split()[-1], "%m/%d/%Y")  # datetime.datetime(2016, 3, 28, 0, 0)

0

0

Моя любимая игрушка, а в Wine не запускается (
Я установил Wine последний, скопировал папку с виндой в папку ~/.wine/dosdevices/c:/Program Files , при запуске из консоли выдает такие ошибки:

[root@localhost Cossacks — Back To War]# wine dmcr
__driCreateNewScreen_20050727 — succeeded
__driCreateNewScreen_20050727 — succeeded
err:wgl:X11DRV_wglGetProcAddress (wglMakeContextCurrentARB) — not found
err:wgl:X11DRV_wglGetProcAddress (wglGetCurrentReadDCARB) — not found
err:wgl:X11DRV_wglGetProcAddress (wglCreatePbufferARB) — not found
err:wgl:X11DRV_wglGetProcAddress (wglGetPbufferDCARB) — not found
err:wgl:X11DRV_wglGetProcAddress (wglReleasePbufferDCARB) — not found
err:wgl:X11DRV_wglGetProcAddress (wglDestroyPbufferARB) — not found
err:wgl:X11DRV_wglGetProcAddress (wglQueryPbufferARB) — not found
fixme:win:EnumDisplayDevicesW ((null),0,0x34f9b8,0x00000000), stub!
fixme:d3d:IWineD3DDeviceImpl_GetAvailableTextureMem (0x11f6e0) : stub, simulating 64MB for now, returning 64MB left
fixme:ddraw:IDirectDrawImpl_SetCooperativeLevel (0x11ec50)->((nil),00000008)
, появляется черное окно, слышен фоновый звук при загрузке меню игры, но графики нету((

При запуске щелчком мыши, выдает кучу ошибок типа «Unknown string: DELSYNC (see COMMENT.TXT)»

Что делать?

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” Unknown string property: ” + fieldName + ” ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: rest and plugin.

Overview

A plugin is used to enhance the core functionalities of Elasticsearch. Elasticsearch provides some core plugins as a part of their release installation. In addition to those core plugins, it is possible to write your own custom plugins as well. There are several community plugins available on GitHub for various use cases.

Examples

Get all of the instructions for the plugin:

sudo bin/elasticsearch-plugin -h

Installing the S3 plugin for storing Elasticsearch snapshots on S3:

sudo bin/elasticsearch-plugin install repository-s3

Removing a plugin:

sudo bin/elasticsearch-plugin remove repository-s3

Installing a plugin using the file’s path:

sudo bin/elasticsearch-plugin install file:///path/to/plugin.zip

Notes and good things to know

Plugins are installed and removed using the elasticsearch-plugin script, which ships as a part of the Elasticsearch installation and can be found inside the bin/ directory of the Elasticsearch installation path.
A plugin has to be installed on every node of the cluster and each of the nodes has to be restarted to make the plugin visible.
You can also download the plugin manually and then install it using the elasticsearch-plugin install command, providing the file name/path of the plugin’s source file.
When a plugin is removed, you will need to restart every Elasticsearch node in order to complete the removal process.

Common issues

Managing permission issues during and after plugin installation is the most common problem. If Elasticsearch was installed using the DEB or RPM packages then the plugin has to be installed using the root user. Otherwise you can install the plugin as the user that owns all of the Elasticsearch files.
In the case of DEB or RPM package installation, it is important to check the permissions of the plugins directory after you install it. You can update the permission if it has been modified using the following command:

chown -R elasticsearch:elasticsearch path_to_plugin_directory

If your Elasticsearch nodes are running in a private subnet without internet access, you cannot install a plugin directly. In this case, you can simply download the plugins and copy the files inside the plugins directory of the Elasticsearch installation path on every node. The node has to be restarted in this case as well.

Log Context

Log “Unknown string property: [” + fieldName + “]”classname is RestGraphAction.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

}
 if (token == XContentParser.Token.VALUE_STRING) {
 if (FIELD_NAME_FIELD.match(fieldName; parser.getDeprecationHandler())) {
 field = parser.text();
 } else {
 throw new ElasticsearchParseException("Unknown string property: [" + fieldName + "]");
 }
 }
 if (token == XContentParser.Token.VALUE_NUMBER) {
 if (SIZE_FIELD.match(fieldName; parser.getDeprecationHandler())) {
 size = parser.intValue();

See how you can use AutoOps to resolve issues

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cg1234

I am using a GPIB-USB-B cable to communicate with a Kiethley 2430. The Labview version I have is the NXG and I downloaded the relevant 24xx drivers from the ni website. The NI MAX is able to detect the instrument and read and write to/from it.

The problem happens when I run one of the vis (ReadMultiple for example). The vi initiates and turns the instrument on but gets stuck in the «Fetch (Measurements).gvi» and shows an execution error (attch image) with the following explanation: «LabVIEW: (Hex 0x68B) The input string contains one or more invalid UTF-8 string sequences».

Does anyone have any idea what might be going on? Could the error be because I am using the older version of the GPIB cable (GPIB-USB-B) versus the HS or HS+ versions? Has anyone else used the B cable with Keithley and run it successfully with Labview?

Solution

Accepted by topic author cg1234

The error is probably happening because NXG is using an other type of string then LabVIEW.

NXG uses Unicode where it is possible that a string contains more bytes for one character.

The error you mention is impossible in LabVIEW. In LabVIEW byte arrays and strings are easily converted in each other. because characters always take one byte and all bytes are defined.

It definitely is not the cabling.

I suggest to work this year in LabVIEW (even in 32 bits LabVIEW) and maybe switch when NXG is a bit more stable.

I do like NXG for students but not yet for production.

greetings from the Netherlands

cg1234

Author

Thank you! That was genius- Labview 2018 worked!!

rguo003

Hi, I have the exact same problem here. I did some research into it and I can say it is the problem of the Fetch (Measurement).gvi in the drive package. The VISA Read function has some problem there and is causing this issue. If you change the output of VISA Read from String to Byte Array and use Byte Array to String function to convert it, the problem will be gone. However, After doing this, I found that the data that was read in from the buffer was not correct any more. I tried using the sweep function and set the range between 1 and 2 V and the voltage data which was read in had several abnormal numbers, such as -85.32, -353.529

rguo003

Hi, you are right about it.

However, I found something more interesting about this issue. I installed both NXG 3.0 and 2.0 on an desktop. I opend the 24XX drive package for NXG 2.0 using NXG 2.0. Everything was working well. Then I saved it as a project in NXG 2.0 and opened it in NXG 3.0 with no problem. When I run it, the problem happened. I did some research on it and my conclusion was that the VISA Read function had some problems. When choosing String as output, error happened. When choosing Byte Array as output and convert it to string by Byte Array to String function, no error but the data read in was not correct.

As you can see in the solution, it is not VISA but the NXG string functions hat generate the problem.

Not that the string functions are wrong but they use UNICODE strings meaning that a character can contain more bytes. So you have to read now a byte array instead of a string with VISA.

There is an article about Unicode strings

https://forums.ni.com/t5/NI-Blog/Designing-LabVIEW-NXG-How-Unicode-Benefits-You/ba-p/3886228

read this and find out

greetings from the Netherlands

rguo003

Thanks for correcting me. I did try reading bytes from VISA Read and convert to string using the Byte Array to String function in NXG 3.0 and it worked with no error. However, the final data I got from doing this is not correct. For example, when I set the source meter to output a 1V voltage. When reading the buffer, the voltage is about 1.78V. Do you have any idea what might cause this problem?

If you read the article I linked to, you can understand the problem.

greetings from the Netherlands

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[Help] unknown string in IDA

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unknown string in IDA

Old
21st March 2018, 01:45 AM

gzliuqingyun

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unknown string in IDA

Hi, everyone

I exported my little UE4 game to Android platform, unpack apk and used IDA to open the libUE4.so, when I searched string «Camera0» in String-window I cannot find it. At last I found the string was recognize as unknown in .rodata segment, it looks like not a C-style string, it uses 4 bytes to present 1 char.

The relative code below

Code:

	// Create camera component 
	Camera = CreateDefaultSubobject<UCameraComponent>(TEXT("Camera0"));
	Camera->SetupAttachment(SpringArm, USpringArmComponent::SocketName);
	Camera->bUsePawnControlRotation = false;
	Camera->FieldOfView = 90.f;

I tried to change the string style(like C-string, unicode …etc) but doesn’t work, so how can I make the IDA recognize the 4-bytes-1-char string «Camera0»?

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Old
21st March 2018, 11:24 PM

Sirmabus

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It’s probably a UTF-32 string that Linux (Android is a Linux derivative) some times uses.

They say they will add more multi-byte support to IDA in the future but for now you’ll probably need to make some kind of plugin to scan for and display these strings.
Scanning for just an ASCII range is easy. You just look for a string of ASCII characters with a terminating zero just like a byte size string, but doing at 32 its instead.

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Old
22nd March 2018, 02:08 AM

gzliuqingyun

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Quote:

Originally Posted by Sirmabus

It’s probably a UTF-32 string that Linux (Android is a Linux derivative) some times uses.

Yes, I found that idapython can help me do that.

The python script below

Code:

def mkwc(ea):
  #ea = ScreenEA()
  if list(XrefsTo(ea)):
    n = 0
    b = []
    while True:
      c = idc.Dword(ea + n * 4)
      if c < 0 or c >= 128:
        return
      if c == 0:
        break
      b.append(chr(c))
      n += 1
    MakeStr(ea, ea + n * 4 + 4)
    MakeComm(ea, '\n' * 3 + ''.join(b) + '\n')
    return ea + n * 4 + 4
  return

def hello():
  for sea in Segments():
    if SegName(sea) != '.rodata': continue
    for iea in range(SegStart(sea), SegEnd(sea), 4):
      name = idaapi.get_name(BADADDR, iea)
      if name and name.startswith('unk_'):
        mkwc(iea)

May this can help anyone faced the problem like me.

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Old
24th March 2018, 07:56 PM

namazso

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Strings window > Right click > Setup

wchar_t on linux is 32 bits

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