After completing upgrading Python 2.7 to 3.4 on mac (10.10.3), I can't compile my codes.
Python 3.4.3 (v3.4.3:9b73f1c3e601, Feb 23 2015, 02:52:03)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "copyright", "credits" or "license()" for more information.
>>> ================================ RESTART ================================
>>>
Traceback (most recent call last):
File "/Users/tpmac/preBS.py", line 31, in <module>
doc = file(os.path.join(subdir,f)).read()
NameError: name 'file' is not defined
>>>
these codes are working with python 2.7 on my system.
There is no builtin file in python3, it has been removed just use open:
open(os.path.join(subdir,f)).read()
It would also be better use with when opening a file:
with open(os.path.join(subdir,f)) as fle:
doc = fle.read()
There is a comprehensive guide here on porting code from python2 to 3
Related
I installed Twilio:
pip3 install twilio
But it will run only from the Python 3 Applications folder.
// ♥ python3
Python 3.7.1 (v3.7.1:260ec2c36a, Oct 20 2018, 03:13:28)
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more
information.
>>> import twilio
>>> print(twilio.__version__)
6.21.0
Here is what I get from any other folder:
Python 3.7.1 (v3.7.1:260ec2c36a, Oct 20 2018, 03:13:28)
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import twilio
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/davidtannenbaum/Dropbox (Personal)/pythonpractice/twilio.py", line 2, in <module>
print(twilio.__version__)
AttributeError: module 'twilio' has no attribute '__version__'
Anyone know why it works in the Python 3.7 directory and gives an error anywhere else? How do I fix this?
I installed anaconda for Python 3.6 in MacOs Sierra.
It comes with its own python and it changed the default python to this new one.
Now, I am not able to import anything from urllib.
Here is a snippet of my terminal.
Can someone give some suggestions?
devassy#mydire $ python
Python 3.6.5 |Anaconda, Inc.| (default, Apr 26 2018, 08:42:37)
[GCC 4.2.1 Compatible Clang 4.0.1 (tags/RELEASE_401/final)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from urllib.request import url2pathname
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/devassy/anaconda3/lib/python3.6/urllib/request.py", line 2585, in <module>
from _scproxy import _get_proxy_settings, _get_proxies
ImportError: dlopen(/Users/devassy/anaconda3/lib/python3.6/lib-dynload/_scproxy.cpython-36m-darwin.so, 2): Symbol not found: _iconv
Referenced from: /usr/lib/libcups.2.dylib
Expected in: /Users/devassy/anaconda3/lib/libiconv.2.dylib
in /usr/lib/libcups.2.dylib
>>>
I have bellow function running on Python 2.7.6 and python 2.7.5
This is 2.7.6
[root#NMCT-MSL-116-1 python_whois-0.2-py2.6.egg-info]# python
Python 2.7.6 (default, Sep 26 2014, 13:25:30)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import whois as wh
>>> wh.whois('199.96.57.7').emails
['mathew#twitter.com', 'sleibrand#twitter.com', 'noc#twitter.com', 'sconnor#twitter.com',
'rjohnson#twitter.com', 'fawad#twitter.com', 'net-abuse#twitter.com']
This is 2.7.5
Python 2.7.5 (default, Jun 17 2014, 18:11:42)
[GCC 4.8.2 20140120 (Red Hat 4.8.2-16)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import whois as wh
>>> wh.whois('199.96.57.7').emails
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/site-packages/whois/__init__.py", line 11, in whois
domain = extract_domain(url)
File "/usr/lib/python2.7/site-packages/whois/__init__.py", line 35, in extract_domain
return socket.gethostbyaddr(url)[0]
socket.herror: [Errno 1] Unknown host
It is same code 2 different Centos versions. First one is 6.5, custom python installation of 2.7.6. Second one is Centos 7 and 2.7.5 default installation. When i manually check both servers can find this host with whois cli tool.
I got stuck and I could not find what is the difference between both machines. They are based on same Network subnet, using same network config except IP addresses.
Does this a difference between versions ? Does anybody has an idea about this ?
$ python
Python 2.7.5 (default, Aug 25 2013, 00:04:04)
[GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import select
>>> select.poll
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'poll'
Instead of using poll, use select.kqueue() on OSX. It's similar to 'epoll' on Linux in that you can more efficiently register for types of file-descriptor / file system events which can be used in asynchronous code. Much more efficient than polling.
Otherwise, the equivalent is just running a blocking select.select() inside a while True: loop with some sort of timeout?
If you want to use poll in order to not rewrite a bunch of code for kqueue, it is built in to the python compiled from macports (macports.org). You just must specify that python instance explicitly (/opt/local/bin/python2.7 in my case) because OSX's python (/usr/bin/python) will by default be earlier in the search path.
Interestingly for future reference, this only comes up with a limited subset of the versions of python
user#hostname:~/ws/engine$ python
Python 2.7.9 (v2.7.9:648dcafa7e5f, Dec 10 2014, 10:10:46)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import select
>>> select.poll()
<select.poll object at 0x102415cc0>
>>> exit()
user#hostname:~/ws/engine$ python --version
Python 2.7.9
user#hostname:~/ws/engine$ workon py_2_7_10
(py_2_7_10) user#hostname:~/ws/engine$ python
Python 2.7.10 (default, Oct 23 2015, 19:19:21)
[GCC 4.2.1 Compatible Apple LLVM 7.0.0 (clang-700.0.59.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import select
>>> select.poll()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'poll'
>>>
~/ws/engine$ uname -a
Darwin hostname 15.4.0 Darwin Kernel Version 15.4.0: Fri Feb 26 22:08:05 PST 2016; root:xnu-3248.40.184~3/RELEASE_X86_64 x86_64
I've installed PyObjC on my Mac, but I can't get it to work at all. Even trying to import the AddressBook class just fails immediately.
Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import AddressBook
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "AddressBook.py", line 17, in <module>
('Last Name', AddressBook.kABLastNameProperty),
AttributeError: 'module' object has no attribute 'kABLastNameProperty'
Does anyone have any ideas as to how to solve this issue? Thanks.
You appear to have a conflicting file named AddressBook.py in your working directory. Rename or remove it or change to another directory.