I am running the newest version of Python on Linux Ubuntu 18.04 LTS. The IDE I'm using to write Python code is IDLE. I tried to install Flask, and this is what happened:
user@Lenovo-ideapad-110-17IKB:~$ pip install Flask
Command 'pip' not found, but can be installed with:
sudo apt install python-pip
user@Lenovo-ideapad-110-17IKB:~$ sudo apt install python-pip
[sudo] password for user:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
linux-hwe-5.4-headers-5.4.0-42 linux-hwe-5.4-headers-5.4.0-45
linux-hwe-5.4-headers-5.4.0-47 linux-hwe-5.4-headers-5.4.0-48
linux-hwe-5.4-headers-5.4.0-51
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
libpython-all-dev libpython-dev libpython2.7-dev python-all python-all-dev
python-asn1crypto python-cffi-backend python-crypto python-cryptography
python-dbus python-dev python-enum34 python-idna python-ipaddress
python-keyring python-keyrings.alt python-pip-whl python-pkg-resources
python-secretstorage python-setuptools python-wheel python-xdg python2.7-dev
Suggested packages:
python-crypto-doc python-cryptography-doc python-cryptography-vectors
python-dbus-dbg python-dbus-doc python-enum34-doc gir1.2-gnomekeyring-1.0
python-fs python-gdata python-keyczar python-secretstorage-doc
python-setuptools-doc
The following NEW packages will be installed:
libpython-all-dev libpython-dev libpython2.7-dev python-all python-all-dev
python-asn1crypto python-cffi-backend python-crypto python-cryptography
python-dbus python-dev python-enum34 python-idna python-ipaddress
python-keyring python-keyrings.alt python-pip python-pip-whl
python-pkg-resources python-secretstorage python-setuptools python-wheel
python-xdg python2.7-dev
0 upgraded, 24 newly installed, 0 to remove and 5 not upgraded.
Need to get 31,8 MB of archives.
After this operation, 51,9 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://de.archive.ubuntu.com/ubuntu bionic-updates/main amd64 libpython2.7-dev amd64 2.7.17-1~18.04ubuntu1.2 [28,3 MB]
Get:2 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 libpython-dev amd64 2.7.15~rc1-1 [7.684 B]
Get:3 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 libpython-all-dev amd64 2.7.15~rc1-1 [1.092 B]
Get:4 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-all amd64 2.7.15~rc1-1 [1.076 B]
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Get:6 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-dev amd64 2.7.15~rc1-1 [1.256 B]
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Get:8 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-asn1crypto all 0.24.0-1 [72,7 kB]
Get:9 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-cffi-backend amd64 1.11.5-1 [63,4 kB]
Get:10 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-crypto amd64 2.6.1-8ubuntu2 [244 kB]
Get:11 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-enum34 all 1.1.6-2 [34,8 kB]
Get:12 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-idna all 2.6-1 [32,4 kB]
Get:13 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-ipaddress all 1.0.17-1 [18,2 kB]
Get:14 http://de.archive.ubuntu.com/ubuntu bionic-updates/main amd64 python-cryptography amd64 2.1.4-1ubuntu1.4 [276 kB]
Get:15 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-dbus amd64 1.2.6-1 [90,2 kB]
Get:16 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-secretstorage all 2.3.1-2 [11,8 kB]
Get:17 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-keyring all 10.6.0-1 [30,6 kB]
Get:18 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-keyrings.alt all 3.0-1 [16,7 kB]
Get:19 http://de.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 python-pip-whl all 9.0.1-2.3~ubuntu1.18.04.4 [1.653 kB]
Get:20 http://de.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 python-pip all 9.0.1-2.3~ubuntu1.18.04.4 [151 kB]
Get:21 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-pkg-resources all 39.0.1-2 [128 kB]
Get:22 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 python-setuptools all 39.0.1-2 [329 kB]
Get:23 http://de.archive.ubuntu.com/ubuntu bionic/universe amd64 python-wheel all 0.30.0-0.2 [36,4 kB]
Get:24 http://de.archive.ubuntu.com/ubuntu bionic/universe amd64 python-xdg all 0.25-4ubuntu1 [31,3 kB]
Fetched 31,8 MB in 5s (5.902 kB/s)
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user@Lenovo-ideapad-110-17IKB:~$ pip install Flask
Collecting Flask
Downloading https://files.pythonhosted.org/packages/f2/28/2a03252dfb9ebf377f40fba6a7841b47083260bf8bd8e737b0c6952df83f/Flask-1.1.2-py2.py3-none-any.whl (94kB)
100% |████████████████████████████████| 102kB 3.0MB/s
Collecting click>=5.1 (from Flask)
Downloading https://files.pythonhosted.org/packages/d2/3d/fa76db83bf75c4f8d338c2fd15c8d33fdd7ad23a9b5e57eb6c5de26b430e/click-7.1.2-py2.py3-none-any.whl (82kB)
100% |████████████████████████████████| 92kB 5.5MB/s
Collecting Werkzeug>=0.15 (from Flask)
Downloading https://files.pythonhosted.org/packages/cc/94/5f7079a0e00bd6863ef8f1da638721e9da21e5bacee597595b318f71d62e/Werkzeug-1.0.1-py2.py3-none-any.whl (298kB)
100% |████████████████████████████████| 307kB 2.4MB/s
Collecting itsdangerous>=0.24 (from Flask)
Downloading https://files.pythonhosted.org/packages/76/ae/44b03b253d6fade317f32c24d100b3b35c2239807046a4c953c7b89fa49e/itsdangerous-1.1.0-py2.py3-none-any.whl
Collecting Jinja2>=2.10.1 (from Flask)
Downloading https://files.pythonhosted.org/packages/30/9e/f663a2aa66a09d838042ae1a2c5659828bb9b41ea3a6efa20a20fd92b121/Jinja2-2.11.2-py2.py3-none-any.whl (125kB)
100% |████████████████████████████████| 133kB 4.5MB/s
Collecting MarkupSafe>=0.23 (from Jinja2>=2.10.1->Flask)
Downloading https://files.pythonhosted.org/packages/fb/40/f3adb7cf24a8012813c5edb20329eb22d5d8e2a0ecf73d21d6b85865da11/MarkupSafe-1.1.1-cp27-cp27mu-manylinux1_x86_64.whl
Installing collected packages: click, Werkzeug, itsdangerous, MarkupSafe, Jinja2, Flask
Successfully installed Flask-1.1.2 Jinja2-2.11.2 MarkupSafe-1.1.1 Werkzeug-1.0.1 click-7.1.2 itsdangerous-1.1.0
user@Lenovo-ideapad-110-17IKB:~$ pip install -U https://github.com/pallets/flask/archive/master.tar.gz
Collecting https://github.com/pallets/flask/archive/master.tar.gz
Downloading https://github.com/pallets/flask/archive/master.tar.gz
\ 798kB 8.7MB/s
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-Q9wHDr-build/setup.py", line 5, in <module>
with open("src/flask/__init__.py", encoding="utf8") as f:
TypeError: 'encoding' is an invalid keyword argument for this function
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-Q9wHDr-build/
user@Lenovo-ideapad-110-17IKB:~$