ValueError: unsupported format character 'p' (0x70) at index 7
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I am trying to format the string file name by using a loop here is my code
for i in range(1, 16):
bgImageFile = ("bg_%01.png" %i)
python string python-3.x string-formatting
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up vote
-1
down vote
favorite
I am trying to format the string file name by using a loop here is my code
for i in range(1, 16):
bgImageFile = ("bg_%01.png" %i)
python string python-3.x string-formatting
add a comment |
up vote
-1
down vote
favorite
up vote
-1
down vote
favorite
I am trying to format the string file name by using a loop here is my code
for i in range(1, 16):
bgImageFile = ("bg_%01.png" %i)
python string python-3.x string-formatting
I am trying to format the string file name by using a loop here is my code
for i in range(1, 16):
bgImageFile = ("bg_%01.png" %i)
python string python-3.x string-formatting
python string python-3.x string-formatting
edited Nov 11 at 13:17
jpp
86.4k194998
86.4k194998
asked Nov 11 at 13:09
Redemption
82
82
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1 Answer
1
active
oldest
votes
up vote
0
down vote
accepted
The syntax requires %d (or %s), not just %:
for i in range(1, 4):
bgImageFile = 'bg_%s01.png'%i
print(bgImageFile)
bg_101.png
bg_201.png
bg_301.png
With Python 3.6+, you can use f-strings (PEP498):
for i in range(1, 4):
bgImageFile = f'bg_i01.png'
Some specifiers you should know (source):
%s- String (or any object with a string representation, like
numbers)
%d- Integers
%f- Floating point numbers
%.<number of digits>f- Floating point with fixed amount of digits to
the right of the dot.
%x/%X- Integers in hex representation
(lowercase/uppercase)
Thanks, but I'm having another error on OpenCV imshow it says cv2.error: OpenCV(3.4.3) C:projectsopencv-pythonopencvmoduleshighguisrcwindow.cpp:356: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow'
– Redemption
Nov 11 at 13:22
@Redemption, OK, if it's not connected to this question, please ask a new one.
– jpp
Nov 11 at 13:23
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
accepted
The syntax requires %d (or %s), not just %:
for i in range(1, 4):
bgImageFile = 'bg_%s01.png'%i
print(bgImageFile)
bg_101.png
bg_201.png
bg_301.png
With Python 3.6+, you can use f-strings (PEP498):
for i in range(1, 4):
bgImageFile = f'bg_i01.png'
Some specifiers you should know (source):
%s- String (or any object with a string representation, like
numbers)
%d- Integers
%f- Floating point numbers
%.<number of digits>f- Floating point with fixed amount of digits to
the right of the dot.
%x/%X- Integers in hex representation
(lowercase/uppercase)
Thanks, but I'm having another error on OpenCV imshow it says cv2.error: OpenCV(3.4.3) C:projectsopencv-pythonopencvmoduleshighguisrcwindow.cpp:356: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow'
– Redemption
Nov 11 at 13:22
@Redemption, OK, if it's not connected to this question, please ask a new one.
– jpp
Nov 11 at 13:23
add a comment |
up vote
0
down vote
accepted
The syntax requires %d (or %s), not just %:
for i in range(1, 4):
bgImageFile = 'bg_%s01.png'%i
print(bgImageFile)
bg_101.png
bg_201.png
bg_301.png
With Python 3.6+, you can use f-strings (PEP498):
for i in range(1, 4):
bgImageFile = f'bg_i01.png'
Some specifiers you should know (source):
%s- String (or any object with a string representation, like
numbers)
%d- Integers
%f- Floating point numbers
%.<number of digits>f- Floating point with fixed amount of digits to
the right of the dot.
%x/%X- Integers in hex representation
(lowercase/uppercase)
Thanks, but I'm having another error on OpenCV imshow it says cv2.error: OpenCV(3.4.3) C:projectsopencv-pythonopencvmoduleshighguisrcwindow.cpp:356: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow'
– Redemption
Nov 11 at 13:22
@Redemption, OK, if it's not connected to this question, please ask a new one.
– jpp
Nov 11 at 13:23
add a comment |
up vote
0
down vote
accepted
up vote
0
down vote
accepted
The syntax requires %d (or %s), not just %:
for i in range(1, 4):
bgImageFile = 'bg_%s01.png'%i
print(bgImageFile)
bg_101.png
bg_201.png
bg_301.png
With Python 3.6+, you can use f-strings (PEP498):
for i in range(1, 4):
bgImageFile = f'bg_i01.png'
Some specifiers you should know (source):
%s- String (or any object with a string representation, like
numbers)
%d- Integers
%f- Floating point numbers
%.<number of digits>f- Floating point with fixed amount of digits to
the right of the dot.
%x/%X- Integers in hex representation
(lowercase/uppercase)
The syntax requires %d (or %s), not just %:
for i in range(1, 4):
bgImageFile = 'bg_%s01.png'%i
print(bgImageFile)
bg_101.png
bg_201.png
bg_301.png
With Python 3.6+, you can use f-strings (PEP498):
for i in range(1, 4):
bgImageFile = f'bg_i01.png'
Some specifiers you should know (source):
%s- String (or any object with a string representation, like
numbers)
%d- Integers
%f- Floating point numbers
%.<number of digits>f- Floating point with fixed amount of digits to
the right of the dot.
%x/%X- Integers in hex representation
(lowercase/uppercase)
answered Nov 11 at 13:13
jpp
86.4k194998
86.4k194998
Thanks, but I'm having another error on OpenCV imshow it says cv2.error: OpenCV(3.4.3) C:projectsopencv-pythonopencvmoduleshighguisrcwindow.cpp:356: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow'
– Redemption
Nov 11 at 13:22
@Redemption, OK, if it's not connected to this question, please ask a new one.
– jpp
Nov 11 at 13:23
add a comment |
Thanks, but I'm having another error on OpenCV imshow it says cv2.error: OpenCV(3.4.3) C:projectsopencv-pythonopencvmoduleshighguisrcwindow.cpp:356: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow'
– Redemption
Nov 11 at 13:22
@Redemption, OK, if it's not connected to this question, please ask a new one.
– jpp
Nov 11 at 13:23
Thanks, but I'm having another error on OpenCV imshow it says cv2.error: OpenCV(3.4.3) C:projectsopencv-pythonopencvmoduleshighguisrcwindow.cpp:356: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow'
– Redemption
Nov 11 at 13:22
Thanks, but I'm having another error on OpenCV imshow it says cv2.error: OpenCV(3.4.3) C:projectsopencv-pythonopencvmoduleshighguisrcwindow.cpp:356: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow'
– Redemption
Nov 11 at 13:22
@Redemption, OK, if it's not connected to this question, please ask a new one.
– jpp
Nov 11 at 13:23
@Redemption, OK, if it's not connected to this question, please ask a new one.
– jpp
Nov 11 at 13:23
add a comment |
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