How to solve error attributeerror:’pngimagefile’object has no attribute’imshow’ Successfully.
Error:
AttributeError: ‘PngImageFile’ object has no attribute ‘imshow’
Reasons:
Attribute error: the “pngimagefile” object does not have the attribute “imshow”
Solution:
Pngimagefile does not have imshow method, but has show method, so the following changes are required!
Modify
img.imshow()
to
img.show()
solve the problem
No handles with labels found to put in legend.
Traceback (most recent call last):
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\backends\backend_qt5.py", line 508, in _draw_idle
self.draw()
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py", line 388, in draw
self.figure.draw(self.renderer)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\figure.py", line 1709, in draw
renderer, self, artists, self.suppressComposite)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\image.py", line 135, in _draw_list_compositing_images
a.draw(renderer)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axes\_base.py", line 2647, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\image.py", line 135, in _draw_list_compositing_images
a.draw(renderer)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\text.py", line 670, in draw
bbox, info, descent = textobj._get_layout(renderer)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\text.py", line 276, in _get_layout
key = self.get_prop_tup(renderer=renderer)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\text.py", line 831, in get_prop_tup
x, y = self.get_unitless_position()
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\text.py", line 813, in get_unitless_position
x = float(self.convert_xunits(self._x))
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py", line 180, in convert_xunits
return ax.xaxis.convert_units(x)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axis.py", line 1553, in convert_units
f'units: {x!r}') from e
matplotlib.units.ConversionError: Failed to convert value(s) to axis units: 'LiR'
Traceback (most recent call last):
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axis.py", line 1550, in convert_units
ret = self.converter.convert(x, self.units, self)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\category.py", line 52, in convert
'Missing category information for StrCategoryConverter; '
ValueError: Missing category information for StrCategoryConverter; this might be caused by unintendedly mixing categorical and numeric data
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\backends\backend_qt5.py", line 508, in _draw_idle
self.draw()
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py", line 388, in draw
self.figure.draw(self.renderer)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\figure.py", line 1709, in draw
renderer, self, artists, self.suppressComposite)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\image.py", line 135, in _draw_list_compositing_images
a.draw(renderer)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axes\_base.py", line 2647, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\image.py", line 135, in _draw_list_compositing_images
a.draw(renderer)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\text.py", line 670, in draw
bbox, info, descent = textobj._get_layout(renderer)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\text.py", line 276, in _get_layout
key = self.get_prop_tup(renderer=renderer)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\text.py", line 831, in get_prop_tup
x, y = self.get_unitless_position()
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\text.py", line 813, in get_unitless_position
x = float(self.convert_xunits(self._x))
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py", line 180, in convert_xunits
return ax.xaxis.convert_units(x)
File "D:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axis.py", line 1553, in convert_units
f'units: {x!r}') from e
matplotlib.units.ConversionError: Failed to convert value(s) to axis units: 'LiR'Error:
matplotlib.units.Conversion error: failed to convert value to axis unit: ‘LiR’
Solution:
matplotlib version is low, update the matplotlib library to version 3.3.2 or higher!
Successfully solved syntaxerror: (Unicode error) ‘Unicode eescape’ codec can’t decode bytes in position 6-7: malformed
solve the problem
input_image_path = ‘Inputs\Nnu01.jpg’
^
SyntaxError: (unicode error) ‘unicodeescape’ codec can’t decode bytes in position 6-7: malformed \N character escape
Solution ideas
Syntax error: (Unicode error) the ‘Unicode escape’ codec cannot decode bytes at positions 6-7: malformed\n character escape
Solution:
Escape character problem, caused by ‘\n’ in the string! You need to modify as follows, just add r in front!
input_image_path = r'Inputs\Nnu01.jpg'OK, it’s done!
An ERROR occurred while performing the step: “Building kernel modules”. See /var/log/nv
To solve the problem
NVIDIA Software Installer for Unix/Linux
ERROR: An ERROR occurred while performing the step: “Building kernel modules”. See
/var/log/ nvidia-log for details.
solution
Error: An error occurred while performing the step “build a kernel module”. For more information, see /var/log/nvidia-installer.log.
The solution
First check the error log, the solution is really forgotten, really sorry……
PS: friends, really sorry, in the past for a long time, the specific solution to forget, I hope that friends, brainstorm, together to solve this problem, there is a better more detailed way, leave a message we discuss together! Thank you very much!
update
First of all, thank you for your recommendation!
Understand bugs: Nvidia drivers are “fragile.” Because of the execution of the apt-get Upgrade command, the kernel from 4.10 to 4.13, install the Nvidia driver will report an error, so put the kernel version back to 4.10 version, install again!
uname -r #Check the current kernel version
sudo apt-get remove linux-image-(version-number)-generic
For example
sudo apt-get remove linux-image-4.4.0-140-generic-generic # to remove the current kernel version
nvidia-smi # Use the command to view the GPU information after installing the graphics driver
Kernel version in the upgrade, will not delete the old version, just replace the old with the new version, only need to delete the new version of the kernel, the system will automatically descend to the old version, delete the new version of the kernel.
To solve the problem
UnicodeDecodeError: ‘utf-8’ codec can’t decode byte 0xd3 in position 238: invalid continuation byte
solution
Unicode decoding error: “UTF-8” codec cannot decode byte 0xD3 in position 238: Continue byte invalid
The solution
Open the file in Python’s IDE, and add a line of code at the top!
# -*- coding: utf-8 -*-
or
# coding: utf8
To solve the problem
UnicodeDecodeError: ‘utf-8’ codec can’t decode byte 0xd3 in position 238: invalid continuation byte
solution
Unicode decoding error: the “UTF-8” codec could not decode the byte 0xD3 in position 238: The continuing byte is invalid
The solution
Open the file in python’s IDE with a line of code at the top!
# -*- coding: utf-8 -*-
or
# coding: utf8
To solve the problem
Too many input arguments
The solution
Too many input parameters, define a few parameters to give a few parameters
successfully resolve OpenCV Error: Assertion failed (SCN == 3 || SCN == 4) in CV ::cvtColor
directory
solve the problem
solution
solution
OpenCV Error: SCN == 3 || SCN == 4) in CV :cvtColor, file C:\projects\ OpenCV \modules\imgproc\ SRC \color. CPP, line 11111
successfully solved OSError: dlopen() failed to load a library: Cairo/Cairo -2/Cairo -gobject-2/Cairo. So.2
directory
solve the problem
solution
solution
raise OSError(“dlopen() failed to load a library: %s” % ‘/ ‘. Join (names))
OSError: dlopen() failed to load a library: Cairo/Cairo -2/Cairo -gobject-2/Cairo. So.2
causes an operating system error (” dlopen () failed to load library: %s “%”/”. Join (names))
OS error: dlopen () failed to load library:
reference foreign user method
installation GTK+ : GTK+ : introduction to GTK+, installation, and usage details
190517, the first time was ok, but after the second installation, the test did not succeed! It is urgent to solve
reference article: (appoints the original address to show thanks)
Getting “OSError: dlopen() failed to load a library: Cairo/Cairo -2” on Windows
pygal output PNG problem: dlopen() failed to load a library: Cairo/Cairo -2
successfully solved the File “pandas \ _libs \ parsers pyx”, line 2021, in pandas. _libs. Parsers. Raise_parser_error
pandas. Errors. ParserError: Error tokenizing data. C Error: Expected 2 fields in line 53, saw three </ p>
directory
solve the problem
solution
solution
File “pandas\_libs\parsers.pyx”, line 2021, in pandas._libs.parsers.raise_parser_error
pandas.errors.ParserError: Error tokenizing data. C error: Expected 2 fields in line 53, saw 3
pandas. Errors. ParserError: parsing error: tag data error. C error: expect 2 fields in line 53, see 3
because the CSV file is read, the default separation is comma. Analysis shows that the data read contains two fields in a certain cell, that is, two commas may be contained in the value.
,
data= pd.read_csv(data_file, error_bad_lines=False)