upgrade to ipython 7

[fchapoton]

Upgrade ipython and related packages:

• https://pypi.org/project/ipython/ 7.13.0 (current as of 2020-06-05: 7.15.0)
• https://pypi.org/project/ipykernel/ 5.2.1 (current as of 2020-06-05: 5.3.0)
• https://pypi.org/project/backcall/ 0.1.0 (current as of 2020-06-05)
• https://pypi.org/project/jedi/ 0.17.0 (current as of 2020-06-05)
• https://pypi.org/project/prompt-toolkit/ 3.0.5 (current as of 2020-06-05)

All of these package versions support python >= 3.6 (note #29033).

Tarballs: see checksums.ini [upstream_url]. (To configure Sage to download from the upstream URLs, use ./configure --enable-download-from-upstream-url)

CC: @embray @jdemeyer @slel @kiwifb @timokau @antonio-rojas

Component: packages: standard

Keywords: upgrade

Author: Jonathan Kliem, John Palmieri, Antonio Rojas

Branch: e21a7b0

Reviewer: John Palmieri, Matthias Koeppe

Issue created by migration from https://trac.sagemath.org/ticket/28197

[fchapoton]

Branch: public/ticket/28197

[fchapoton]

Description changed:

--- 
+++ 
@@ -1 +1,5 @@
 WARNING: this is python3-only
+
+* upgraded prompt-toolkit-2.0.9.tar.gz
+
+* pip-install backcall

[fchapoton]

comment:1

This is basically working, but maybe without preparsing..

---

New commits:

0d4f0c7

adaptation to ipython 7 : first tentative

[fchapoton]

Commit: 0d4f0c7

[jhpalmieri]

comment:3

Should this depend on #28190?

[fchapoton]

Dependencies: #28190

[jplab]

Description changed:

--- 
+++ 
@@ -1,5 +1,19 @@
 WARNING: this is python3-only
+
+* Upgrade ipython to 7.6.1
+
+```
+$ wget -P upstream https://github.com/ipython/ipython/releases/download/7.6.1/ipython-7.6.1.tar.gz
+```
 
 * upgraded prompt-toolkit-2.0.9.tar.gz
 
+To download the tarball:
+
+```
+$ wget -P upstream --output-document=prompt-toolkit-2.0.9.tar.gz https://github.com/prompt-toolkit/python-prompt-toolkit/archive/2.0.9.tar.gz
+```
+
 * pip-install backcall
+
+

[jplab]

Description changed:

--- 
+++ 
@@ -16,4 +16,19 @@
 
 * pip-install backcall
 
+Current issues (8.9.beta3):
 
+```
+sage: installed_packages()['ipython']                                                                                                                                                                              
+'7.6.1'
+sage: 2^3                                                                                                                                                                                                          
+1
+sage: 2**3                                                                                                                                                                                                         
+8
+sage: n=4                                                                                                                                                                                                          
+sage: type(n)                                                                                                                                                                                                      
+<class 'int'>
+```
+
+The preparsing is not working.
+

[jplab]

Description changed:

--- 
+++ 
@@ -16,19 +16,3 @@
 
 * pip-install backcall
 
-Current issues (8.9.beta3):
-
-```
-sage: installed_packages()['ipython']                                                                                                                                                                              
-'7.6.1'
-sage: 2^3                                                                                                                                                                                                          
-1
-sage: 2**3                                                                                                                                                                                                         
-8
-sage: n=4                                                                                                                                                                                                          
-sage: type(n)                                                                                                                                                                                                      
-<class 'int'>
-```
-
-The preparsing is not working.
-

[jplab]

comment:7

Current issues (8.9.beta3):

sage: installed_packages()['ipython']                                                                                                                                                                              
'7.6.1'
sage: 2^3                                                                                                                                                                                                          
1
sage: 2**3                                                                                                                                                                                                         
8
sage: n=4                                                                                                                                                                                                          
sage: type(n)                                                                                                                                                                                                      
<class 'int'>

The preparsing is not working since it has been commented out.

[jplab]

comment:8

Trying to launch ipython one get:

jplabbe@blackbomb:~/sage$ sage -ipython
Traceback (most recent call last):
...
pkg_resources.DistributionNotFound: The 'jedi>=0.10' distribution was not found and is required by ipython

So one has to install the jedi module as well.

[fchapoton]

Description changed:

--- 
+++ 
@@ -16,3 +16,5 @@
 
 * pip-install backcall
 
+* pip-install jedi
+