Tkinter Installation Issue

[email protected]:~/python_programs$ pip install Tkinter Collecting Tkinter Exception: Traceback (most recent call last): File “/usr/lib/python2.7/dist-packages/pip/basecommand.py”, line 215, in main status = self.run(options, args) File “/usr/lib/python2.7/dist-packages/pip/commands/install.py”, line 353, in run wb.build(autobuilding=True) File “/usr/lib/python2.7/dist-packages/pip/wheel.py”, line 749, in build self.requirement_set.prepare_files(self.finder) File “/usr/lib/python2.7/dist-packages/pip/req/req_set.py”, line 380, in prepare_files ignore_dependencies=self.ignore_dependencies)) File “/usr/lib/python2.7/dist-packages/pip/req/req_set.py”, line 554, in _prepare_file require_hashes File “/usr/lib/python2.7/dist-packages/pip/req/req_install.py”, line 278, in…

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Ensure TLS communication security in Mosquitto

I have simple MQTT Mosquitto server that I’m trying to make secure. Mosquitto.conf: log_type all password_file /etc/mosquitto/mosquitto_users.txt pid_file /var/run/mosquitto.pid persistence true persistence_location /var/lib/mosquitto/ port 8883 cafile /etc/mosquitto/ca_certificates/ca.crt keyfile /etc/mosquitto/ca_certificates/server.key certfile /etc/mosquitto/ca_certificates/server.crt tls_version tlsv1 On current server I generated: CA certificate openssl genrsa -des3 -out ca.key 2048 openssl req -new -x509 -days 3650 -key ca.key -out…

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Are there any strategies that would help me visualize the ‘behavior space’ and make a novelty function?

In “Abandoning Objectives: Evolution through the Search for Novelty Alone”, it is explained how the novelty search is a function that is domain specific, depending on the differing behaviors that can potentially emerge. The primary test is a deceptive maze and it seems like they define novelty as a function that is dependent on each…

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Apache disabling mpm_prefork error: The following modules depend on mpm_prefork and need to be disabled first: php7.3

I have a 8GB droplet on digitalocean. We launched our site today and we got intense traffic, we have about 3000 concurrent users. I tried to raise the ammount of concurrent connections (with the advice of apache2buddy) but the suggested MaxRequestWorkers to be 482. Here is the file: <IfModule mpm_prefork_module> ServerLimit 482 StartServers 5 MinSpareServers…

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