Lovely broken more portable code. More PHW exercises.

Sermon-Upload/sermon-upload.py

@@ -1,4 +1,4 @@
-# Sermon Upload v1.1 Alpha
+# Sermon Upload v1.2 Alpha
 
 from subprocess import call # We can do BASH in Python if needed.
 import os # Lots of system stuff
@@ -7,38 +7,46 @@ import glob # Import glob tools for file listings.
 import notify2 # Notification utility.
 import time # Import time into the galaxy
 
-time.sleep(10) # Wait 10 seconds.
-os.chdir("/mnt/52265C99265C8041/Users/Berean-Sound/sermons") # Go to sermon directory.
-list = sorted(glob.glob('*.mp3')) # Sort files alphabetically.
-mostrecent = list[-1] # Find most recent sermon
-secondrecent = list[-2] # Find second most recent sermon
+def upload(sermonsrc, sermondst, key): # Input has to end in /
 
-sermonsrc = "/mnt/52265C99265C8041/Users/Berean-Sound/sermons/" + mostrecent # Grab the most recent sermon to copy.
-sermondst = "/home/berean/sermons/2018/" + mostrecent # Destination for most recent sermon.
+    time.sleep(10) # Wait 10 seconds.
+    os.chdir(sermonsrc) # Go to sermon directory.
+    list = sorted(glob.glob('*.mp3')) # Sort files alphabetically.
+    mostrecent = list[-1] # Find most recent sermon
+    secondrecent = list[-2] # Find second most recent sermon
 
-copyfile(sermonsrc, sermondst) # Copy the sermon
+    sermonsrc = sermonsrc + mostrecent # Grab the most recent sermon to copy.
+    sermondst = sermondst + mostrecent # Destination for most recent sermon.
 
-os.chdir("/home/berean/sermons/2018/") # Go to the directory where the sermon has been copied to
-os.system("rsync --update --progress -e 'ssh -i /home/berean/sermons/.tempssh/temp' *.mp3 sermons@bereanbibleutah.org:/home/josh/sermons/2018/") # Upload the sermon.
+    copyfile(sermonsrc, sermondst) # Copy the sermon
 
-call(sermons=$("ssh -i /home/berean/sermons/.tempssh/temp sermons@bereanbibleutah.org 'ls /home/josh/sermons/2018'") # Grab a list of uploaded sermons.
-call("export sermons") # Export the list to Python
-recentsermon = os.environ["sermons"] # Set it to a variable
-recentsermon = recentsermon[-1] # Try to grab most recent sermon.
-print(recentsermon) # Print most recent sermon.
+    os.chdir(sermondst) # Go to the directory where the sermon has been copied to
+    call(sermondst=sermondst)
+    call("export sermondst")
+    print(call("echo sermondst"))
+    os.system("rsync --update --progress -e 'ssh -i /home/berean/sermons/.tempssh/temp' *.mp3 sermons@bereanbibleutah.org:/home/josh/sermons/2018/") # Upload the sermon.
+    call("findsermon='ls $sermondst'")
+    call("export findsermon")
+    call('sermons=$("ssh -i $key sermons@bereanbibleutah.org $findsermon")')
+    call("export sermons") # Export the list to Python
+    recentsermon = os.environ["sermons"] # Set it to a variable
+    recentsermon = recentsermon[-1] # Try to grab most recent sermon.
+    print(recentsermon) # Print most recent sermon.
 
-if mostrecent == recentsermon: # If the most recent sermon uploaded matches the most recent sermon locally, we're good.
+    if mostrecent == recentsermon: # If the most recent sermon uploaded matches the most recent sermon locally, we're good.
 
-    notify2.init('Sermon Script')
-    n = notify2.Notification("Sermon Uploaded",
-         mostrecent
+        notify2.init('Sermon Script')
+        n = notify2.Notification("Sermon Uploaded",
+             mostrecent
+                 )
+        n.show()
+
+    else: # Otherwise, something went wrong.
+
+         notify2.init('Sermon Script')
+         n = notify2.Notification("Sermon Upload Failed",
+              mostrecent
              )
-    n.show()
+         n.show()
 
-else: # Otherwise, something went wrong.
-
-     notify2.init('Sermon Script')
-     n = notify2.Notification("Sermon Upload Failed",
-          mostrecent
-         )
-     n.show()
+upload("/mnt/52265C99265C8041/Users/Berean-Sound/sermons", "/home/josh/sermons/2018", "/home/berean/sermons/.tempssh/temp")

ex17.py

@@ -0,0 +1,27 @@
+from sys import argv
+from os.path import exists
+
+script, from_file, to_file = argv
+
+print(f"Copying from {from_file} to {to_file}")
+
+# we could do these two on one line, how?
+in_file = open(from_file)
+indata = in_file.read()
+
+#print(f"The input file is {len(indata)} bytes long")
+
+#print(f"Does the output file exist? {exists(to_file)}")
+#print("Ready, hit RETURN to continue, CRTL-C to abort.")
+#input()
+
+out_file = open(to_file, 'w')
+out_file.write(indata)
+
+print("Alright, all done.")
+
+out_file.close() # Close file to save resources.
+in_file.close()
+
+# 1, 3, 4, 5 Done.
+# 2. nah

ex18.py

@@ -0,0 +1,22 @@
+# this one is like your scripts with argv
+def print_two(*args):
+    arg1, arg2 = args
+    print(f"arg1: {arg1}, arg2: {arg2}")
+
+# ok, that *args is actually pointless, we can just do this
+def print_two_again(arg1, arg2):
+    print(f"arg1: {arg1}, arg2: {arg2}")
+
+# this just takes one argument
+def print_one(arg1):
+    print(f"arg1: {arg1}")
+
+# this one takes no arguments
+
+def print_none():
+    print("I got nothin'.")
+
+print_two("Zed", "Shaw")
+print_two_again("Zed", "Shaw")
+print_one("First!")
+print_none()

install-dbus-python.sh

@@ -4,3 +4,5 @@
 pip install notify2
 sudo apt-get install libgtk2.0-dev libdbus-1-dev
 pip install dbus-python
+
+#Put pip in $PATH by editing .bashrc and adding $PATH=PATH:/opt/python3.6/bin/