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Where does ubuntu find python 3.6.8 instead of 2.7? What information should I refer to to understand the principle?
Should I put #! (shebang) in Python scripts, and what form should it take?Can I find the path to the python executable from inside python?Conda example does not work, it shows newer not older numpy?“'CXXABI_1.3.8' not found” in tensorflow-gpu - install from sourceHow can I manage mutiple python in Ubuntu16.04?ImportError: libcudnn.so.5: cannot open shared object file: No such file or directory, Python 2.7 with Tensorflow-gpuPycharm autocomplete doesn't work in conda envSome modules can be imported in python previously but now can only be imported in ipython2How could I resume my own python configuration after quiting anacondaAfter installing spyder, conda module is not found
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;
I don't know why I typed in python, ubuntu opened python 3.6.8, why should I open python3.6.8, how is the system looking for it?
/home/minzhang/anaconda2/bin/python
minzhang@minzhang:~/anaconda2$ /home/minzhang/anaconda2/bin/python
Python 2.7.15 |Anaconda, Inc.| (default, Dec 14 2018, 19:04:19)
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
minzhang@minzhang:~/anaconda2$ python
Python 3.6.8 |Anaconda, Inc.| (default, Dec 30 2018, 01:22:34)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
minzhang@minzhang:~/anaconda2$ echo $PATH
/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/envs/blockchain/bin:/home/minzhang/anaconda2/condabin:/home/minzhang/anaconda2/bin:/home/minzhang/bin:/home/minzhang/.local/bin:/home/minzhang/java/jdk1.8.0_181/bin:/home/minzhang/java/jdk1.8.0_181/jre/bin:/home/minzhang/work/exercise/gnuplot/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:$JAVA_HOME/bin:/snap/bin:/usr/local/go/bin:/home/minzhang/go
minzhang@minzhang:~/anaconda2$ tail -n 2 /etc/profile
alias python=python3
minzhang@minzhang:~/anaconda2$ tail -n 2 ~/.bashrc
#export rsync_proxy=$http_proxy
alias python=python3
minzhang@minzhang:~/anaconda2$ python --version
Python 3.6.8 :: Anaconda, Inc.
minzhang@minzhang:~/anaconda2$ ll bin/python*
lrwxrwxrwx 1 minzhang minzhang 9 3月 10 10:34 bin/python -> python2.7*
lrwxrwxrwx 1 minzhang minzhang 9 3月 10 10:34 bin/python2 -> python2.7*
-rwxrwxr-x 1 minzhang minzhang 19760 12月 15 03:06 bin/python2.7*
-rwxrwxr-x 1 minzhang minzhang 1701 3月 10 10:34 bin/python2.7-config*
lrwxrwxrwx 1 minzhang minzhang 16 3月 10 10:34 bin/python2-config -> python2.7-config*
lrwxrwxrwx 1 minzhang minzhang 16 3月 10 10:34 bin/python-config -> python2.7-config*
“I expect the output of python to be 2.7, but the actual output is 3.6.8.”,
python ubuntu
asked Mar 24 at 2:58
user8213812user8213812
61
add a comment |
I don't know why I typed in python, ubuntu opened python 3.6.8, why should I open python3.6.8, how is the system looking for it?
/home/minzhang/anaconda2/bin/python
minzhang@minzhang:~/anaconda2$ /home/minzhang/anaconda2/bin/python
Python 2.7.15 |Anaconda, Inc.| (default, Dec 14 2018, 19:04:19)
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
minzhang@minzhang:~/anaconda2$ python
Python 3.6.8 |Anaconda, Inc.| (default, Dec 30 2018, 01:22:34)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
minzhang@minzhang:~/anaconda2$ echo $PATH
/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/envs/blockchain/bin:/home/minzhang/anaconda2/condabin:/home/minzhang/anaconda2/bin:/home/minzhang/bin:/home/minzhang/.local/bin:/home/minzhang/java/jdk1.8.0_181/bin:/home/minzhang/java/jdk1.8.0_181/jre/bin:/home/minzhang/work/exercise/gnuplot/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:$JAVA_HOME/bin:/snap/bin:/usr/local/go/bin:/home/minzhang/go
minzhang@minzhang:~/anaconda2$ tail -n 2 /etc/profile
alias python=python3
minzhang@minzhang:~/anaconda2$ tail -n 2 ~/.bashrc
#export rsync_proxy=$http_proxy
alias python=python3
minzhang@minzhang:~/anaconda2$ python --version
Python 3.6.8 :: Anaconda, Inc.
minzhang@minzhang:~/anaconda2$ ll bin/python*
lrwxrwxrwx 1 minzhang minzhang 9 3月 10 10:34 bin/python -> python2.7*
lrwxrwxrwx 1 minzhang minzhang 9 3月 10 10:34 bin/python2 -> python2.7*
-rwxrwxr-x 1 minzhang minzhang 19760 12月 15 03:06 bin/python2.7*
-rwxrwxr-x 1 minzhang minzhang 1701 3月 10 10:34 bin/python2.7-config*
lrwxrwxrwx 1 minzhang minzhang 16 3月 10 10:34 bin/python2-config -> python2.7-config*
lrwxrwxrwx 1 minzhang minzhang 16 3月 10 10:34 bin/python-config -> python2.7-config*
“I expect the output of python to be 2.7, but the actual output is 3.6.8.”,
python ubuntu
asked Mar 24 at 2:58
user8213812user8213812
61
When I switch to rootRoot@minzhang:/usr/bin# python --version Python 3.6.7When I switch back to the normal userMinzhang@minzhang:~/anaconda2$ python --version Python 3.6.8 :: Anaconda, Inc.Why are there different outputs? Are there some official documentation links explaining these things?
– user8213812
Mar 24 at 3:21
add a comment |
I don't know why I typed in python, ubuntu opened python 3.6.8, why should I open python3.6.8, how is the system looking for it?
/home/minzhang/anaconda2/bin/python
minzhang@minzhang:~/anaconda2$ /home/minzhang/anaconda2/bin/python
Python 2.7.15 |Anaconda, Inc.| (default, Dec 14 2018, 19:04:19)
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
minzhang@minzhang:~/anaconda2$ python
Python 3.6.8 |Anaconda, Inc.| (default, Dec 30 2018, 01:22:34)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
minzhang@minzhang:~/anaconda2$ echo $PATH
/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/envs/blockchain/bin:/home/minzhang/anaconda2/condabin:/home/minzhang/anaconda2/bin:/home/minzhang/bin:/home/minzhang/.local/bin:/home/minzhang/java/jdk1.8.0_181/bin:/home/minzhang/java/jdk1.8.0_181/jre/bin:/home/minzhang/work/exercise/gnuplot/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:$JAVA_HOME/bin:/snap/bin:/usr/local/go/bin:/home/minzhang/go
minzhang@minzhang:~/anaconda2$ tail -n 2 /etc/profile
alias python=python3
minzhang@minzhang:~/anaconda2$ tail -n 2 ~/.bashrc
#export rsync_proxy=$http_proxy
alias python=python3
minzhang@minzhang:~/anaconda2$ python --version
Python 3.6.8 :: Anaconda, Inc.
minzhang@minzhang:~/anaconda2$ ll bin/python*
lrwxrwxrwx 1 minzhang minzhang 9 3月 10 10:34 bin/python -> python2.7*
lrwxrwxrwx 1 minzhang minzhang 9 3月 10 10:34 bin/python2 -> python2.7*
-rwxrwxr-x 1 minzhang minzhang 19760 12月 15 03:06 bin/python2.7*
-rwxrwxr-x 1 minzhang minzhang 1701 3月 10 10:34 bin/python2.7-config*
lrwxrwxrwx 1 minzhang minzhang 16 3月 10 10:34 bin/python2-config -> python2.7-config*
lrwxrwxrwx 1 minzhang minzhang 16 3月 10 10:34 bin/python-config -> python2.7-config*
“I expect the output of python to be 2.7, but the actual output is 3.6.8.”,
python ubuntu
asked Mar 24 at 2:58
user8213812user8213812
61
I don't know why I typed in python, ubuntu opened python 3.6.8, why should I open python3.6.8, how is the system looking for it?
/home/minzhang/anaconda2/bin/python
minzhang@minzhang:~/anaconda2$ /home/minzhang/anaconda2/bin/python
Python 2.7.15 |Anaconda, Inc.| (default, Dec 14 2018, 19:04:19)
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
minzhang@minzhang:~/anaconda2$ python
Python 3.6.8 |Anaconda, Inc.| (default, Dec 30 2018, 01:22:34)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
minzhang@minzhang:~/anaconda2$ echo $PATH
/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/bin:/home/minzhang/anaconda2/envs/blockchain/bin:/home/minzhang/anaconda2/condabin:/home/minzhang/anaconda2/bin:/home/minzhang/bin:/home/minzhang/.local/bin:/home/minzhang/java/jdk1.8.0_181/bin:/home/minzhang/java/jdk1.8.0_181/jre/bin:/home/minzhang/work/exercise/gnuplot/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:$JAVA_HOME/bin:/snap/bin:/usr/local/go/bin:/home/minzhang/go
minzhang@minzhang:~/anaconda2$ tail -n 2 /etc/profile
alias python=python3
minzhang@minzhang:~/anaconda2$ tail -n 2 ~/.bashrc
#export rsync_proxy=$http_proxy
alias python=python3
minzhang@minzhang:~/anaconda2$ python --version
Python 3.6.8 :: Anaconda, Inc.
minzhang@minzhang:~/anaconda2$ ll bin/python*
lrwxrwxrwx 1 minzhang minzhang 9 3月 10 10:34 bin/python -> python2.7*
lrwxrwxrwx 1 minzhang minzhang 9 3月 10 10:34 bin/python2 -> python2.7*
-rwxrwxr-x 1 minzhang minzhang 19760 12月 15 03:06 bin/python2.7*
-rwxrwxr-x 1 minzhang minzhang 1701 3月 10 10:34 bin/python2.7-config*
lrwxrwxrwx 1 minzhang minzhang 16 3月 10 10:34 bin/python2-config -> python2.7-config*
lrwxrwxrwx 1 minzhang minzhang 16 3月 10 10:34 bin/python-config -> python2.7-config*
“I expect the output of python to be 2.7, but the actual output is 3.6.8.”,
python ubuntu
python ubuntu
asked Mar 24 at 2:58
user8213812user8213812
61
asked Mar 24 at 2:58
user8213812user8213812
61
asked Mar 24 at 2:58
user8213812user8213812
61
asked Mar 24 at 2:58
user8213812user8213812
61
asked Mar 24 at 2:58
user8213812user8213812
61
61
When I switch to rootRoot@minzhang:/usr/bin# python --version Python 3.6.7When I switch back to the normal userMinzhang@minzhang:~/anaconda2$ python --version Python 3.6.8 :: Anaconda, Inc.Why are there different outputs? Are there some official documentation links explaining these things?
– user8213812
Mar 24 at 3:21
add a comment |
When I switch to rootRoot@minzhang:/usr/bin# python --version Python 3.6.7When I switch back to the normal userMinzhang@minzhang:~/anaconda2$ python --version Python 3.6.8 :: Anaconda, Inc.Why are there different outputs? Are there some official documentation links explaining these things?
– user8213812
Mar 24 at 3:21
When I switch to root
Root@minzhang:/usr/bin# python --version Python 3.6.7 When I switch back to the normal user Minzhang@minzhang:~/anaconda2$ python --version Python 3.6.8 :: Anaconda, Inc. Why are there different outputs? Are there some official documentation links explaining these things?– user8213812
Mar 24 at 3:21
When I switch to root
Root@minzhang:/usr/bin# python --version Python 3.6.7 When I switch back to the normal user Minzhang@minzhang:~/anaconda2$ python --version Python 3.6.8 :: Anaconda, Inc. Why are there different outputs? Are there some official documentation links explaining these things?– user8213812
Mar 24 at 3:21
add a comment |
3 Answers
3
active
oldest
votes
Use which python and whereis python (where python on Windows) to debug questions about where executable files are being found. The output from those should answer your question. Cheers!
answered Mar 24 at 3:10
Benjamin StrinerBenjamin Striner
20932
thanks!My content above shows that I have usedwhich python. Do you know where my python 3.6.8 installation is? I have looked for/usr/bin/and/home/minzhang/anaconda2/bin/, can't find it, why did Ubuntu choose 3.6.8? I only found 3.6.7 in``` /usr/bin/ ```
– user8213812
Mar 24 at 3:34
add a comment |
Because you have this alias python=python3 in your bash profile. An alias means when you type python you are actually calling python3. If you would like to call python 2 remove the alias from your bash profile
answered Mar 24 at 3:11
Mitchel PaulinMitchel Paulin
1,782819
add a comment |
I found out, in the directory minzhang@minzhang:~/anaconda2/pkgs/python-3.6.8-h0371630_0/binbase environment
answered Mar 24 at 4:34
user8213812user8213812
61
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
Use which python and whereis python (where python on Windows) to debug questions about where executable files are being found. The output from those should answer your question. Cheers!
answered Mar 24 at 3:10
Benjamin StrinerBenjamin Striner
20932
thanks!My content above shows that I have usedwhich python. Do you know where my python 3.6.8 installation is? I have looked for/usr/bin/and/home/minzhang/anaconda2/bin/, can't find it, why did Ubuntu choose 3.6.8? I only found 3.6.7 in``` /usr/bin/ ```
– user8213812
Mar 24 at 3:34
add a comment |
Use which python and whereis python (where python on Windows) to debug questions about where executable files are being found. The output from those should answer your question. Cheers!
answered Mar 24 at 3:10
Benjamin StrinerBenjamin Striner
20932
thanks!My content above shows that I have usedwhich python. Do you know where my python 3.6.8 installation is? I have looked for/usr/bin/and/home/minzhang/anaconda2/bin/, can't find it, why did Ubuntu choose 3.6.8? I only found 3.6.7 in``` /usr/bin/ ```
– user8213812
Mar 24 at 3:34
add a comment |
Use which python and whereis python (where python on Windows) to debug questions about where executable files are being found. The output from those should answer your question. Cheers!
answered Mar 24 at 3:10
Benjamin StrinerBenjamin Striner
20932
Use which python and whereis python (where python on Windows) to debug questions about where executable files are being found. The output from those should answer your question. Cheers!
answered Mar 24 at 3:10
Benjamin StrinerBenjamin Striner
20932
answered Mar 24 at 3:10
Benjamin StrinerBenjamin Striner
20932
answered Mar 24 at 3:10
Benjamin StrinerBenjamin Striner
20932
answered Mar 24 at 3:10
Benjamin StrinerBenjamin Striner
20932
20932
thanks!My content above shows that I have usedwhich python. Do you know where my python 3.6.8 installation is? I have looked for/usr/bin/and/home/minzhang/anaconda2/bin/, can't find it, why did Ubuntu choose 3.6.8? I only found 3.6.7 in``` /usr/bin/ ```
– user8213812
Mar 24 at 3:34
add a comment |
thanks!My content above shows that I have usedwhich python. Do you know where my python 3.6.8 installation is? I have looked for/usr/bin/and/home/minzhang/anaconda2/bin/, can't find it, why did Ubuntu choose 3.6.8? I only found 3.6.7 in``` /usr/bin/ ```
– user8213812
Mar 24 at 3:34
thanks!My content above shows that I have used
which python. Do you know where my python 3.6.8 installation is? I have looked for /usr/bin/ and /home/minzhang/anaconda2/bin/, can't find it, why did Ubuntu choose 3.6.8? I only found 3.6.7 in``` /usr/bin/ ```– user8213812
Mar 24 at 3:34
thanks!My content above shows that I have used
which python. Do you know where my python 3.6.8 installation is? I have looked for /usr/bin/ and /home/minzhang/anaconda2/bin/, can't find it, why did Ubuntu choose 3.6.8? I only found 3.6.7 in``` /usr/bin/ ```– user8213812
Mar 24 at 3:34
add a comment |
Because you have this alias python=python3 in your bash profile. An alias means when you type python you are actually calling python3. If you would like to call python 2 remove the alias from your bash profile
answered Mar 24 at 3:11
Mitchel PaulinMitchel Paulin
1,782819
add a comment |
Because you have this alias python=python3 in your bash profile. An alias means when you type python you are actually calling python3. If you would like to call python 2 remove the alias from your bash profile
answered Mar 24 at 3:11
Mitchel PaulinMitchel Paulin
1,782819
add a comment |
Because you have this alias python=python3 in your bash profile. An alias means when you type python you are actually calling python3. If you would like to call python 2 remove the alias from your bash profile
answered Mar 24 at 3:11
Mitchel PaulinMitchel Paulin
1,782819
Because you have this alias python=python3 in your bash profile. An alias means when you type python you are actually calling python3. If you would like to call python 2 remove the alias from your bash profile
answered Mar 24 at 3:11
Mitchel PaulinMitchel Paulin
1,782819
answered Mar 24 at 3:11
Mitchel PaulinMitchel Paulin
1,782819
answered Mar 24 at 3:11
Mitchel PaulinMitchel Paulin
1,782819
answered Mar 24 at 3:11
Mitchel PaulinMitchel Paulin
1,782819
1,782819
add a comment |
add a comment |
I found out, in the directory minzhang@minzhang:~/anaconda2/pkgs/python-3.6.8-h0371630_0/binbase environment
answered Mar 24 at 4:34
user8213812user8213812
61
add a comment |
I found out, in the directory minzhang@minzhang:~/anaconda2/pkgs/python-3.6.8-h0371630_0/binbase environment
answered Mar 24 at 4:34
user8213812user8213812
61
add a comment |
I found out, in the directory minzhang@minzhang:~/anaconda2/pkgs/python-3.6.8-h0371630_0/binbase environment
answered Mar 24 at 4:34
user8213812user8213812
61
I found out, in the directory minzhang@minzhang:~/anaconda2/pkgs/python-3.6.8-h0371630_0/binbase environment
answered Mar 24 at 4:34
user8213812user8213812
61
answered Mar 24 at 4:34
user8213812user8213812
61
answered Mar 24 at 4:34
user8213812user8213812
61
answered Mar 24 at 4:34
user8213812user8213812
61
61
add a comment |
add a comment |
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When I switch to root
Root@minzhang:/usr/bin# python --version Python 3.6.7When I switch back to the normal userMinzhang@minzhang:~/anaconda2$ python --version Python 3.6.8 :: Anaconda, Inc.Why are there different outputs? Are there some official documentation links explaining these things?– user8213812
Mar 24 at 3:21