sys

问题 I am making two lists in IDLE of Python 3.7 there names are a and b they are going to differ in terms of initialization but the content is same(as I think so, but maybe I am wrong) >>>a = [1,2,3,4] >>>a [1, 2, 3, 4] >>>b = list(map(lambda x:x,a)) >>>b [1, 2, 3, 4] however when I want to know their size with help of sys.getsizeof method sys.getsizeof(a) returns 96 whereas sys.getsizeof(b) returns 120 so can anyone help me to understand why is this happening? PS: i was just trying out map

问题 This question already has answers here : How to get Case Insensitive Python SET (6 answers) How do I do a case-insensitive string comparison? (9 answers) Closed 2 years ago . I have the following script to import and export random TXT/CSV files from CLI, everything that passes has to be unique and case insensitive output in UTF-8, can I accomplish this with a set variable? I'm quite new to Python so every comment or suggestion is welcome! This is my current script; import hashlib import sys

问题 This question already has answers here : How to get Case Insensitive Python SET (6 answers) How do I do a case-insensitive string comparison? (9 answers) Closed 2 years ago . I have the following script to import and export random TXT/CSV files from CLI, everything that passes has to be unique and case insensitive output in UTF-8, can I accomplish this with a set variable? I'm quite new to Python so every comment or suggestion is welcome! This is my current script; import hashlib import sys

问题 Because I face a problem: When from imageio import imread in my jupyter notebook, I get the error: ModuleNotFoundError: No module named 'imageio' Whereas I can successfully import in my terminal, I try to figure out what happened. When I execute sys.executable in jupyter notebook and in the terminal, the results are different: So I tried:(from https://github.com/jupyter/notebook/issues/1524#issuecomment-229713719) /Users/shinyuwu/anaconda3/bin/python -m pip install ipykernel /Users/shinyuwu

问题 I'm trying to execute a python script which is included in datas, and bundled into a pyinstaller executable (on a mac). I need to pass parameters to this script, so I can't just exec(open(read()). Outside of pyinstaller, sys.executable is the python interpreter, so calling the python script works fine. In pyinstaller, sys.executable is the 'main' py script, so it just opens up my app again instead of calling the new script. How can I call my additional python script inside my app? This is

问题 I've configured jupyter to be used from a remote computer and set a password to it while initial anaconda setup. Then after fixing this issue, I am trapped in another one. sys.path and sys.executable is incorrect in jupyter , but correct in python and ipython . Please see the details below. Anaconda3 is installed for all users in /opt/anaconda3 and I am using an environment zud for my programs. Background Once the above-mentioned problem is fixed, I tried to import igraph in jupyter but it

问题 I would like to access the $PATH variable from inside a python program. My understanding so far is that sys.path gives the Python module search path, but what I want is $PATH the environment variable. Is there a way to access that from within Python? To give a little more background, what I ultimately want to do is find out where a user has Package_X/ installed, so that I can find the absolute path of an html file in Package_X/. If this is a bad practice or if there is a better way to

问题 I've installed python on mac with homebrew. Some tools (pipenv for example) have some troubles because they try to write to /lib/python3.7/site-packages/ , not permitted under mac. After some investigation I found that they start a new python interpreter found in sys.executable that is effectively inconsistent with the python path installed by homebrew. $ which python /usr/local/bin/python $ python -c "import sys; print(sys.executable)" /usr/local/opt/python/bin/python3.7 I would expect that

来源： https://stackoverflow.com/questions/44661246/python-pass-sys-argv-when-loading-python-script-with-subprocess-popen

问题 I have gone through the sys documentation, however there is something that is still unclear to me. I have looked for some similar question on stackoverflow, but I haven't find anything useful (clearly any reference is appreciated!). I want to create a script - say foo.py - in which I want pass from 3 to 6 arguments: $ python foo.py arg1 arg2 arg3 The first 3 arguments must be given in any case; the last 3 arguments are used in a function that have default argument values if nothing is passed.