Error reporting:
zsh: command not found: pip3
zsh: command not found: pip
Reason: it seems that this problem occurred after my PIP update failed
Solution:
Official website solution
Execute at the terminal first:
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
Get the get pip. Py file in the current directory
Then execute in the current directory:
sudo python3 get-pip.py
Then pip is installed successfully
Environment:
Ubuntu18.04
mysql:8.0
python: 3.6.8
django: 2.2.6
pymysql: 0.9.3
Install pymysql
pip install pymysql
introduce pymysql into Django
under the package with the same name as the project directory__init__. Write the following code to the PY file:
import pymysql
pymysql.install_as_MySQLdb()
configure MySQL in Django, and then start Django service. The errors are as follows:
File "/home/www/.local/share/virtualenvs/EduScore-UXZMOCwv/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 36, in <module>
raise ImproperlyConfigured('mysqlclient 1.3.13 or newer is required; you have %s.' % Database.__version__)
django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.13 or newer is required; you have 0.9.3.
Solution:
Use vim to open /home/www/.local/share/virtualenvs/EduScore-UXZMOCwv/lib/python3.6/site-packages/django/db/backends/mysql/base.py file, and Comment out the following code
#if version < (1, 3, 13):
# raise ImproperlyConfigured('mysqlclient 1.3.13 or newer is required; you have %s.' % Database.__version__)
start Django server and find or report an error. The error information is:
AttributeError: 'str' object has no attribute 'decode'
Solution:
find the corresponding file and change the decode of the error line to encode
After installing OMV (ver. 4.1.22), I intend to install some software with apt , and then I encounter the following error:
Exception ignored in: <function WeakValueDictionary.__init__.<locals>.remove at 0x7f81db3bc730>
Traceback (most recent call last):
File "/usr/lib/python3.5/weakref.py", line 117, in remove
TypeError: 'NoneType' object is not callable
Exception ignored in: <function WeakValueDictionary.__init__.<locals>.remove at 0x7f81db3bc730>
Traceback (most recent call last):
File "/usr/lib/python3.5/weakref.py", line 117, in remove
TypeError: 'NoneType' object is not callable
After a search, Google found a solution on GitHub:
First open the /usr/lib/python3.5/weakref.py file:
vim /usr/lib/python3.5/weakref.py
Then change line 109 to
def remove(wr, selfref=ref(self), _atomic_removal=_remove_dead_weakref):
Line 117 should read
_atomic_removal(d, wr.key)
WQ save it, and then try apt , and the problem is solved
surroundings:
DB: 18.3.0.0
OS: Hundreds 7
When doing 2-node rac-rac, one node of the standby database cannot be started, and the error message is as follows:
1. Error message
2021-07-19T04:20:26.842539-04:00
ALTER SYSTEM SET remote_listener=’ rac-scan:1521′ SCOPE=MEMORY SID=’oradg2′;
2021-07-19T04:20:26.847739-04:00
ALTER SYSTEM SET listener_networks=” SCOPE=MEMORY SID=’oradg2′;
NOTE: ASM background process initiating disk discovery for grp 2 ( reqid:0)
2021-07-19T04:20:27.703220-04:00
ORA-00210: cannot open the specified control file
ORA-00202: control file:’+DATA/ORADG/CONTROLFILE/current.260.1078285093′
ORA-17503: ksfdopn:2 Failed to open file +DATA/ORADG/CONTROLFILE/current.260.1078285093
ORA-15001: diskgroup “DATA” does not exist or is not mounted
ORA-15040: diskgroup is incomplete
2021-07-19T04:20:27.727000-04:00
ORA-205 signalled during: ALTER DATABASE MOUNT…
2021-07-19T04:20:28.396066-04:00
WARNING: group 2 (DATA) has missing disks
ORA-15040: diskgroup is incomplete
WARNING: group 2 is being dismounted.
WARNING: ASMB force dismounting group 2 (DATA) due to missing disks
SUCCESS: diskgroup DATA was dismounted
2021-07-19T04:21:22.830412-04:00
Decreasing number of high priority LMS from 1 to 0
2. Check the asm disk group
and execute
su-grid
SQL> connect / as sysasm
Connected.
SQL> set linesize 1000;
SQL> select GROUP_NUMBER,NAME,STATE,OFFLINE_DISKS from v$asm_diskgroup;
GROUP_NUMBER NAME STATE OFFLINE_DISKS
———— ———————————————————— ———————- ————-
1 OCR MOUNTED 0
2 DATA MOUNTED 0
SQL> select GROUP_NUMBER,STATE,path,MOUNT_STATUS,state from v$asm_disk;
GROUP_NUMBER STATE PATH MOUNT_STATUS STATE
———— —————- ——————————————————-
1 NORMAL /dev/mapper/ocrdisk02 CACHED NORMAL
2 NORMAL /dev/mapper/datadisk01 CACHED NORMAL
1 NORMAL /dev/mapper/ocrdisk03 CACHED NORMAL
1 NORMAL /dev/mapper/ocrdisk01 CACHED NORMAL
3. Check the attribute
node 2 of the oracle file, the node that reported the error
[root@rac02 ~]# su-oracle
[oracle@rac02 ~]$ ls -al /u01/oracle/app/product/18.0.0/db_1/bin/ oracle
-rwsr-s–x 1 oracle oinstall 436992448 Jul 16 04:49 /u01/oracle/app/product/18.0.0/db_1/bin/oracle
Normal node
[root@rac01 ~]# su-oracle
[oracle@rac01 bin]$ ls -al /u01/oracle/app/product/18.0.0/db_1/bin/oracle
-rwsr-s–x 1 oracle asmadmin 436992448 Jul 16 04:45 /u01/oracle/app/product/18.0.0/db_1/bin/oracle
Found that the attributes of the file have changed
Solution:
[root@rac02 ~]#chmod u+s /u01/oracle/app/product/18.0.0/db_1/bin/oracle
[root@rac02 ~]#chmod g+s /u01/oracle/app/ product/18.0.0/db_1/bin/oracle
[root@rac02 ~]#chown oracle:asmadmin /u01/oracle/app/product/18.0.0/db_1/bin/oracle
The error content is: the input is cuda type data, but the weight type used is not, and their types should be the same.
Solution :
Just change your network model to the cuda type (before using the model).
Such as model_class = yourModelName()
old version: model_class(x)
new version: model_class.cuda()
model_class(x)
Sample code:
# Install required libs
# NOTE: Run this one code, then restart this runtime and run again for next all... (PENTING!!!)
### please update Albumentations to version>=0.3.0 for `Lambda` transform support
!pip install -U segmentation-models
!pip install q tensorflow==2.1
!pip install q keras==2.3.1
!pip install tensorflow-estimator==2.1.
## Imports libs
import os
os.environ [ 'CUDA_VISIBLE_DEVICES' ] = '0'
import cv2
import Keras
import NumPy as np
import matplotlib.pyplot as plt
Error message:
AttributeError Traceback (most recent call last)
<ipython-input-3-9c78a7be919d> in <module>()
5
6 import cv2
----> 7 import keras
8 import numpy as np
9 import matplotlib.pyplot as plt
8 frames
/usr/local/lib/python3.7/dist-packages/keras/initializers/__init__.py in populate_deserializable_objects()
47
48 LOCAL.ALL_OBJECTS = {}
---> 49 LOCAL.GENERATED_WITH_V2 = tf.__internal__.tf2.enabled()
50
51 # Compatibility aliases (need to exist in both V1 and V2).
AttributeError: module 'tensorflow.compat.v2.__internal__' has no attribute 'tf2'
Solution:
!pip install -U -q segmentation-models
!pip install -q tensorflow==2.1
!pip install -q keras==2.3.1
!pip install -q tensorflow-estimator==2.1.
## Imports libs
import os
os.environ['CUDA_VISIBLE_DEVICES'] = '0'
os.environ["SM_FRAMEWORK"] = "tf.keras"
from tensorflow import keras
import segmentation_models as sm
Function call being given different modules: ModuleNotFoundError: No Module1 the named ‘python_base.test1’; ‘python_base’ IS Not A Package ( ModuleNotFoundError: No module named ‘python_base.test1’ a; ‘python_base’ is not a package )
It is found that there is a py file with the same name under the package package, which causes an error to be reported when the call is made. (It is hereby recorded to prevent such low-level mistakes from being made in the future!)
Two other points to note:
The symptoms are as follows:
Solution:
Remove the place that the red pen circled
Solved!
Error message :Passthrough is not supported, GL is swiftshader
Solution:
The error message Passthrough is not supported, GL is swiftshadermay be the error message displayed after Chromedriver version 89.
When using chromedriver, you generally need to specify --headlessand --disable-gpuparameters, and the browser window may not be displayed. If you do not use these two options, no error message will appear.
You can also use the --disable-software-rasterizerparameter to disable it WebGL, and no error message will be displayed in the mode that does not display the window.
Error message :Passthrough is not supported, GL is disabled)
Solution : If the above method cannot -enable-webgl --no-sandbox --disable-dev-shm-usagebe solved , you can also try to solve it with parameters.
UnicodeDecodeError:’gbk’ codec can’t decode byte 0xaa in position 171: illegal multibyte sequence
Check if there is a pytest.ini configuration file in the root directory.
Solution:
1. It is necessary to delete all the Chinese comments and also delete
2. In the pytest.ini file, change utf-8 to gbk in the lower right corner
