Try to get the cv2. I’m not sure when opencv-python became available. I’d been building opencv by hand, but when I looked a few weeks ago, there it was. I’m using cv2 with Python3 in a VM that’s running ubuntu/trusty64.
First thing is to remember that python uses zero indexing. You can iterate throught the list except using the range function to get the indexes of the items you want or slices to get the elements. What I think is becoming confusing here is that in your example, the values and the indexes are the … Read more
I have a two requirements . First Requirement-I want to read the last line of a file and assign the last value to a variable in python. Second Requirement– Here is my sample file. From this file I want to read the content i.e filename.txt which will be after <context:property-placeholder location= ..And want to assign … Read more
You can use triple quotes (single ‘ or double “):
Give print a file keyword argument, where the value of the argument is a file stream. We can create a file stream using the open function: From the Python documentation about print: The file argument must be an object with a write(string) method; if it is not present or None, sys.stdout will be used. And … Read more
In Python 2.x print is actually a special statement and not a function*. This is also why it can’t be used like: lambda x: print x Note that (expr) does not create a Tuple (it results in expr), but , does. This likely results in the confusion between print (x) and print (x, y) in Python 2.7 However, since print is a special syntax statement/grammar construct in Python 2.x then, without … Read more
Use this as an example: The equivalent code in Python would be:
“The only way I can remove it seems to be: sudo rm -rf venv“ That’s it! There is no command for deleting your virtual environment. Simply deactivate it and rid your application of its artifacts by recursively removing it. Note that this is the same regardless of what kind of virtual environment you are using. virtualenv, venv, Anaconda … Read more
I’m trying to convert a fairly simple Python program to an executable and couldn’t find what I was looking for, so I have a few questions (I’m running Python 3.6): The methods of doing this that I have found so far are as follows downloading an old version of Python and using pyinstaller/py2exe setting up a … Read more
What the traceback error is pointing out is the misuse of for statement: for i in Updt(): for in python 3 is as follows: “Python’s for statement iterates over the items of any sequence (a list or a string), in the order that they appear in the sequence.” (source: python 3.3 documentation, section 4: More … Read more