beispiele/data-errors.txt

@@ -1,5 +0,0 @@
-record 1: 100, 300, 50, 200
-record 2 300, 450, 50, 100
-record 3: 150, 200, 0, 150
-record 4: 350, 200, 5O, 250
-record 5: 50, 100, 200, 300

beispiele/data.txt

@@ -1,5 +0,0 @@
-record 1: 100, 300, 50, 200
-record 2: 300, 450, 50, 100
-record 3: 150, 200, 0, 150
-record 4: 350, 200, 50, 250
-record 5: 50, 100, 200, 300

beispiele/readfile3.py

@@ -8,7 +8,7 @@ with open(filename, "r") as fileobj:
     max_linelength = 0
     longest_line = -1
 
-    for i, line in enumerate(fileobj):
+    for i, line in enumerate(data):
         if len(line) > max_linelength:
             max_linelength = len(line)
             longest_line = i + 1

beispiele/readfile4.py

@@ -2,15 +2,12 @@
 
 import sys
 
-if len(sys.argv) >= 2:
 filename = sys.argv[1]
-else:
-    filename = "data.txt"
 
 data = {}
 
 with open(filename, "r") as fileobj:
-    for i, line in enumerate(fileobj):
+    for i, line in enumerate(data):
         line = line.strip()  # remove whitespace from start/end of line
 
         if line.startswith('#'):

beispiele/readfile5.py

@@ -1,29 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-
-if len(sys.argv) >= 2:
-    filename = sys.argv[1]
-else:
-    filename = "data.txt"
-
-data = {}
-
-try:
-    with open(filename, "r") as fileobj:
-        for i, line in enumerate(fileobj):
-            line = line.strip()  # remove whitespace from start/end of line
-
-            if line.startswith('#'):
-                # ignore comment lines
-                continue
-
-            name, raw_data = line.split(":", 1)  # split line at first colon
-            items = raw_data.split(",")          # split raw data at commas
-
-            data[name.strip()] = items
-except OSError as exc:
-    print(f"Could not open file {filename}: {exc}")
-
-for key in data:
-    print(key, data[key])

beispiele/readfile6.py

@@ -1,36 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-
-if len(sys.argv) >= 2:
-    filename = sys.argv[1]
-else:
-    filename = "data.txt"
-
-data = {}
-
-try:
-    with open(filename, "r") as fileobj:
-        for i, line in enumerate(fileobj):
-            line = line.strip()  # remove whitespace from start/end of line
-
-            if line.startswith('#'):
-                # ignore comment lines
-                continue
-
-            try:
-                name, raw_data = line.split(":", 1)  # split line at first colon
-            except ValueError as exc:
-                print(f"Warning: could not parse line {i+1}: {exc}")
-            else:
-                try:
-                    items = [int(item) for item in raw_data.split(",")]          # split raw data at commas
-                except (ValueError, TypeError) as exc:
-                    print(f"Warning: could not parse data on line {i+1}: {exc}")
-
-            data[name.strip()] = items
-except OSError as exc:
-    print(f"Could not open file {filename}: {exc}")
-
-for key in data:
-    print(key, data[key])

beispiele/wp_crawler1.py

@@ -1,52 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-import urllib.parse as urlparse
-
-import requests
-import lxml.html
-
-
-def find_see_also_links(tree):
-
-    # get heading element of "See also" section using XPath
-    see_also_heading = tree.xpath("//span[@id='See_also']")[0].getparent()
-
-    # find following UL element, which contains the LI elements with the actual links
-    for sibling in see_also_heading.itersiblings():
-        hrefs = sibling.xpath("li/a")
-
-        if hrefs:
-            return [(href.text, href.get("href")) for href in hrefs]
-
-        if sibling.tag.startswith("h"):
-            break
-
-
-def main():
-    if len(sys.argv) < 2:
-        sys.exit("Usage: wp_crawler.py <url>")
-
-    url = sys.argv[1]
-    url_parts = urlparse.urlsplit(url)
-    base_url =  urlparse.urlunsplit(list(url_parts[:3]) + ['', ''])
-
-    resp = requests.get(url)
-
-    if not resp.status_code == 200:
-        sys.exit(f"Could not retrive URL '{url}'. Aborting.")
-    tree = lxml.html.fromstring(resp.text)
-
-    links = find_see_also_links(tree)
-
-    if links:
-        for title, url in links:
-            if not url.startswith("https://"):
-                if url.startswith("/"):
-                    url = urlparse.urljoin(base_url, url)
-
-            print(title, url)
-
-
-if __name__ == '__main__':
-    main()