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update examples to py3

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This commit is contained in:
John Cupitt 2020-11-09 11:00:29 +00:00
parent 3cd880260f
commit 5afa726b8c
1 changed files with 5 additions and 5 deletions
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doc/Examples.md
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@ -18,7 +18,7 @@ in the API. It's also a useful source of examples.
# Average a region of interest box on an image # Average a region of interest box on an image
``` python ``` python
#!/usr/bin/env python #!/usr/bin/python3
import sys import sys
import pyvips import pyvips
@ -30,7 +30,7 @@ height = 64
image = pyvips.Image.new_from_file(sys.argv[1]) image = pyvips.Image.new_from_file(sys.argv[1])
roi = image.crop(left, top, width, height) roi = image.crop(left, top, width, height)
print 'average:', roi.avg() print('average:', roi.avg())
``` ```
# libvips and numpy # libvips and numpy
@ -40,7 +40,7 @@ an area of memory. The memory array needs to be laid out band-interleaved,
as a set of scanlines, with no padding between lines. as a set of scanlines, with no padding between lines.
```python ```python
#!/usr/bin/env python #!/usr/bin/python3
import sys import sys
import time import time
@ -50,7 +50,7 @@ from PIL import Image
import numpy as np import numpy as np
if len(sys.argv) != 3: if len(sys.argv) != 3:
print('usage: {0} input-filename output-filename'.format(sys.argv[0])) print(f'usage: {sys.argv[0]} input-filename output-filename')
sys.exit(-1) sys.exit(-1)
# map vips formats to np dtypes # map vips formats to np dtypes
@ -153,7 +153,7 @@ images, you'd need to do some more work to convert them all into the same
colourspace before inserting them. colourspace before inserting them.
``` python ``` python
#!/usr/bin/env python #!/usr/bin/python3
#file try255.py #file try255.py
import sys import sys