Category Archives: Python

[Solved] Python3.9 Pycropto RSA Error: TypeError: can’t concat str to bytes

python3.9 pycropto RSA Error: TypeError: can't concat str to bytes

1. Error reporting

The recent project uses the pycrypto package under python3.9. The following errors occur when using the RSA module, mainly because bytes and STR in python3 cannot be spliced

File "/usr/local/python-3.9.4/lib/python3.9/site-packages/Crypto/PublicKey/RSA.py", line 352, in exportKey
    keystring = ''.join([ struct.pack(">I",len(kp))+kp for kp in keyparts]) 
  File "/usr/local/python-3.9.4/lib/python3.9/site-packages/Crypto/PublicKey/RSA.py", line 352, in <listcomp>
    keystring = ''.join([ struct.pack(">I",len(kp))+kp for kp in keyparts]) 
TypeError: can't concat str to bytes

2. Modification

We can check the error file /python3.9/site-packages/crypto/publickey/rsa Py the main idea is to change the output variable into bytes for splicing. The original part of the file content is modified, line:346:

if format=='OpenSSH':
	eb = long_to_bytes(self.e)
	nb = long_to_bytes(self.n)
	if bord(eb[0]) & 0x80: eb=bchr(0x00)+eb
	if bord(nb[0]) & 0x80: nb=bchr(0x00)+nb
	keyparts = [ 'ssh-rsa', eb, nb ]
	keystring = ''.join([ struct.pack(">I",len(kp))+kp for kp in keyparts]) 
	return 'ssh-rsa '+binascii.b2a_base64(keystring)[:-1]

Modified to:

if format=='OpenSSH':
	eb = long_to_bytes(self.e)
	nb = long_to_bytes(self.n)
	if bord(eb[0]) & 0x80: eb=bchr(0x00)+eb
	if bord(nb[0]) & 0x80: nb=bchr(0x00)+nb
	keyparts = [ 'ssh-rsa', eb, nb ]
	new_list = []
	for kp in keyparts:
	    temp  = struct.pack(">I", len(kp))
	    if isinstance(kp, str):
	        kp = bytes(kp,encoding='utf-8')
	    temp += kp
	    new_list.append(temp)
	keystring = b''.join(new_list)
	return b'ssh-rsa '+binascii.b2a_base64(keystring)[:-1]

[Solved] Saving to Database Error: pymysql.err.DataError: (1366, “Incorrect string value…

DataError : (1366, “Valeur incorrecte : ‘\xE5\\xA4\xAA\xE7\\xA9\xBA…'”) for column ‘title’ at row 1″), vérifiez l’état de l’exécution en arrière-plan, les données ont été extraites, déterminez donc le problème de ce type de rapport d’erreur, ce type de problème est généralement un problème de codage.

Returning to the database creation command interface, I found that utf8 was not added during creation. Returning to the database creation interface and adding charset = utf8 again, there is no problem

[Solved] ValueError: Error when checking input: expected conv2d_input to have 4 dimensions

Error Messages:

ValueError: Error when checking input: expected conv2d_input to have 4 dimensions, but got array with shape (150, 150, 3)
Codes:

image = mpimg.imread("./ima/b.jpg")
image = image/255
classe = model.predict(image, batch_size=1)

Reason:
the input format is incorrect
solution:
standardize the dataset

Specific solutions:

image = mpimg.imread("./ima/b.jpg")
image = image.reshape(image.shape(1,150,150,3)/255
classe = model.predict(image, batch_size=1)

[Solved] This error might have occurred since this system does not have Windows Long Path support enabled.

This error might have occurred since this system does not have Windows Long Path support enabled.

pip install rife_ncnn_vulkan_python
WARNING: Ignoring invalid distribution -ip (d:\python3.8\lib\site-packages)
WARNING: Ignoring invalid distribution -ip (d:\python3.8\lib\site-packages)
Collecting rife_ncnn_vulkan_python
Using cached rife-ncnn-vulkan-python-1.1.2.post3.tar.gz (21.5 MB)
ERROR: Could not install packages due to an OSError: [Errno 2] No such file or directory: ‘C:\Users\Administrator\AppData\Local\Temp\pip-install-ti2fh5nq\rife-ncnn-vulkan-python_464f213e18974938aa0e4a998e825356\rife_ncnn_vulkan_python/rife-ncnn-vulkan/src/ncnn/glslang/Test/baseResults/spv.WorkgroupMemoryExplicitLayout.MixBlockNonBlock_Errors.comp.out’
HINT: This error might have occurred since this system does not have Windows Long Path support enabled. You can find information on how to enable this at https://pip.pypa.io/warnings/enable-long-paths

 

Solution:

[Solved] RuntimeError: Cannot clone object ＜keras.wrappers.scikit_learn.KerasClassifier object…

Today, I debugged the code and found this error. The complete contents are as follows:

RuntimeError: Cannot clone object < keras. wrappers. scikit_ learn. KerasClassifier object at 0x000003A783733F33>, as the constructor either does not set or modifies parameter layers

No error is reported when the code is found. It is normal

The code is then investigated:

from keras.wrappers.scikit_learn import KerasRegressor

Change to:

from tensorflow.keras.wrappers.scikit_learn import KerasRegressor

Problem solved!

OSError: [WinError 1455] The page file is too small to complete the operation. Error loading…

Complete error oserror: [winerror 1455] the page file is too small to complete the operation. Error loading “C:\ProgramData\Anaconda3\lib\site-packages\torch\lib\shm.dll” or one of its dependencies.

Scenario: Running the reid-strong-baseline model

Reason: The model is too large, and the system allocated paging memory is too small to train

Environment: windows10, cuda version: 11.1, pytorch version: 1.11.0+cu113

(1) Query your CUDA version:

nvidia-smi

(2) Query your own version of pytorch

import torch
print(torch.__version__)

Solution: Right-click Properties->Advanced System Settings->Advanced->Settings->Advanced->Programs->Change->Uncheck “Automatically manage…” (Define initial size and maximum size) (set here according to the actual available space, as large as possible) -> click “Settings” -> OK -> reboot

If the error is still reported after reboot, the possible reasons are: (1) the custom size is still too small (for example, I set 10G at the beginning, but still reported an error, and subsequently modified to 100G (100000M) to run successfully) (2) the batch_size is too large, you can adjust the size appropriately (for example, reduce 64 to 16)

[Solved] vpython: AttributeError: ‘box‘ object has no attribute ‘idx‘

vpython : AttributeError: ‘box‘ object has no attribute ‘idx‘

Problem description

1. Problem Description:

After importing the VPython library, the errors reported after using the sphere class or box class in the VPython library are as follows:

the main error statement is the underlined part: attributeerror: 'box' object has no attribute 'IDX' (changing box to sphere is the same).

After debugging, it is found that the specific errors are as follows:

2. Solution

  1. Make sure vpython is installed
  2. Check the third-party libraries of the project environment for the packages autobahn and txaio, e.g. mine are autobahn version is 22.4.2, txaio version is 22.2.1.
  3. Lower the version of audobahn. If I lower the version to 22.3.2

Success!!!!!!!

[Solved] Geopy library Error: Configurationerror Error

Geopy library Error: Configuration Error

Error details

geopy.exc.ConfigurationError: 
Using Nominatim with default or sample `user_agent` "geopy/2.2.0" is strongly discouraged, as it violates Nominatim's ToS https://operations.osmfoundation.org/policies/nominatim/ and may possibly cause 403 and 429 HTTP errors. Please specify a custom `user_agent` with `Nominatim(user_agent="my-application")` or by overriding the default `user_agent`: `geopy.geocoders.options.default_user_agent = "my-application"`.

Solution:
This error is because the default value of UA is bad. Just specify user-agent as a unique string. For example
, when BuyiXiao initializes Nominatim, specify user-agent.

geolocator = Nominatim(user_agent='BuyiXiao')

[Solved] RuntimeError: Error(s) in loading state_dict for BertForTokenClassification

RuntimeError: Error(s) in loading state_dict for BertForTokenClassification

problem：
RuntimeError: Error(s) in loading state_dict for BertForTokenClassification:size mismatch for bert.embeddings.word_embeddings.weight: copying a param with shape torch.Size([21128, 768]) from checkpoint, the shape in current model is torch.Size([119547, 768]).
Solution：
The parameters of torch are not consistent with the mod
My original code was

model = AutoModelForTokenClassification.from_pretrained("bert-base-multilingual-cased", num_labels=len(label_names))

Just reinstall pytorch

conda install pytorch==1.7.1

[Solved] Windows pycrypto Install Error: ERROR: Failed building wheel for pycrypto

Windows will report an error when installing pycrypto.

Here are some errors

Collecting pycrypto
  Downloading http://mirrors.aliyun.com/pypi/packages/60/db/645aa9af249f059cc3a368b118de33889219e0362141e75d4eaf6f80f163/pycrypto-2.6.1.tar.gz (446 kB)
     |████████████████████████████████| 446 kB 344 kB/s
Building wheels for collected packages: pycrypto
  Building wheel for pycrypto (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: 'd:\ProgramData\Anaconda3\envs\d2t\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\zm\\AppData\\Local\\Temp\\pip-install-trmr6taw\\pycrypto_e1aaae9b5afb410691bac391ddb2c59f\\setup.py'"'"'; __file__='"'"'C:\\Users\\zm\\AppData\\Local\\Temp\\pip-install-trmr6taw\\pycrypto_e1aaae9b5afb410691bac391ddb2c59f\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\zm\AppData\Local\Temp\pip-wheel-egkss95d'
       cwd: C:\Users\zm\AppData\Local\Temp\pip-install-trmr6taw\pycrypto_e1aaae9b5afb410691bac391ddb2c59f\
  Complete output (183 lines):

The solution is:

1. Enter VC directory: C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC

2. Execute vcvarsall.bat

3. Execute set CL=-FI”%VCINSTALLDIR%\INCLUDE\stdint.h”

Install it (I install it in the env of anaconda, so I enter env first)

https://blog.csdn.net/zm274310577/article/details/124927922

[Solved] error: (-2:Unspecified error) The function is not implemented. Rebuild the library with Windows

Error: error: (-2:Unspecified error) The function is not implemented. Rebuild the library with Windows

I’m on windows, and when running an image motion blur algorithm from the cv-python library, this error is suddenly reported.
Searching for similar problems has said that the path to read the image is wrong, and reinstalling a higher version of the cv library, but not all of them are useless.
All the functions under the cv2 class are not working.

Solution:
First:

pip uninstall opencv-python

Then:

pip install opencv-python

Just reinstall this package. I don’t know the cause. The problem occurred after I installed the evaluations package. It should be caused by the conflict between versions
stackoverflow: https://stackoverflow.com/questions/67120450/error-2unspecified-error-the-function-is-not-implemented-rebuild-the-libra

[Solved] Spyder Start Error: “An error occurred while starting the kernel“

Record – when Spyder is opened, “an error occurred while starting the kernel” appears

when using Spyder, "an error occurred while starting the kernel" appears. Spyder reported an error attributeerror: type object 'ioloop' has no attribute 'initialized'

Solution:

Search the online methods as follows:
method 1:
Restart Spyder:
the command is Spyder — reset

“An error occurred while starting the kernel” still appears after trying.

Method 2:
enter CONDA update Spyder ipykernel tornado pyzmq
in the terminal. This is also tried, but still an error is reported

The following three methods are finally solved. It is said that the version of tornado is too high. After checking that my version is 6.0, I uninstalled the original version and reinstalled a lower version.

 pip uninstall tornado
 pip install tornado==4.5.3：