I use Python to read a large file on macOS 10.13. It seems that every time I try to read a large file, it just fails. The code:
f = open('file_name', 'r')
x = f.read()
print(x)
The scripts work well when the file is file_name
small, but does not work when reading large files (in my case 3.5 GB):
/usr/local/Cellar/python3/3.6.1/Frameworks/Python.framework/Versions/3.6/bin/python3.6 /Users/mengzhao/PycharmProjects/testread/readthisfile.py
Traceback (most recent call last):
File "/Users/mengzhao/PycharmProjects/testread/readthisfile.py", line 3, in <module>
x = f.read()
OSError: [Errno 22] Invalid argument
Process finished with exit code 1
I have 16 GB of memory, and I'm sure this is not due to memory. And sys.version
gives me the following:
3.6.1 (default, Apr 4 2017, 09:40:21)
[GCC 4.2.1 Compatible Apple LLVM 8.1.0 (clang-802.0.38)]
And it doesn't matter if I use 'rb' or 'r', I have the same problem. Here is some debugging information after the first line is executed. The method seems to be open
good:
![enter image description here](https://fooobar.com//img/6505db6c2a133dafaf5844c4f75fa3a3.png)
, python 2.7.10
, . , - Python3
Mac. Python 3.5.2
Python 3.6.1
.
, ?